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Park JY, Chung HM, Strauss FJ, Lee JS. Dimensional changes after horizontal and vertical guided bone regeneration without membrane fixation using the retentive flap technique: A 1-year retrospective study. Clin Implant Dent Relat Res 2023; 25:871-880. [PMID: 37309236 DOI: 10.1111/cid.13237] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 05/22/2023] [Indexed: 06/14/2023]
Abstract
AIM To evaluate the dimensional changes after horizontal and vertical guided bone regeneration (GBR) without membrane fixation using the retentive flap technique. METHODS This study retrospectively examined two cohorts that received vertical or horizontal ridge augmentations (VA or HA groups). GBR was performed using particulate bone substitutes and resorbable collagen membranes. The augmented sites were stabilized using the retentive flap technique without any additional membrane fixation. The augmented tissue dimensions were assessed using cone-beam computed tomography at preoperative, immediately postoperative (IP), 4 months (4M), and 1 year (1Y). RESULTS Postoperative vertical bone gain in 11 participants of VA group amounted to 5.96 ± 1.88 mm at IP, which decreased to 5.53 ± 1.62 at 4M and to 5.26 ± 1.52 mm at 1Y (intragroup p < 0.05). The horizontal bone gain at IP in 12 participants amounted to 3.98 ± 2.06 mm, which decreased to 3.02 ± 2.06 at 4M and to 2.48 ± 2.09 mm at 1Y (intragroup p < 0.05). The mean implant dehiscence defect height after 1Y was 0.19 ± 0.50 mm in the VA group, and 0.57 ± 0.93 mm in the HA group. CONCLUSION GBR without membrane fixation using the retentive flap technique seems to preserve the radiographic bone dimensions of vertically augmented sites. This technique may be less effective at preserving the width of the augmented tissue.
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Affiliation(s)
- Jin-Young Park
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Republic of Korea
- Innovation Research and Support Center for Dental Science, Yonsei University Dental Hospital, Seoul, Republic of Korea
| | - Hye-Min Chung
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Franz-Josef Strauss
- Clinic of Reconstructive Dentistry, University of Zurich, Zurich, Switzerland
- Department of Conservative Dentistry, Faculty of Dentistry, University of Chile, Santiago, Chile
| | - Jung-Seok Lee
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Republic of Korea
- Innovation Research and Support Center for Dental Science, Yonsei University Dental Hospital, Seoul, Republic of Korea
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Urban IA, Montero E, Amerio E, Palombo D, Monje A. Techniques on vertical ridge augmentation: Indications and effectiveness. Periodontol 2000 2023; 93:153-182. [PMID: 36721380 DOI: 10.1111/prd.12471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 08/21/2022] [Indexed: 02/02/2023]
Abstract
Vertical ridge augmentation techniques have been advocated to enable restoring function and esthetics by means of implant-supported rehabilitation. There are three major modalities. The first is guided bone regeneration, based on the principle of compartmentalization by means of using a barrier membrane, which has been demonstrated to be technically demanding with regard to soft tissue management. This requisite is also applicable in the case of the second modality of bone block grafts. Nonetheless, space creation and maintenance are provided by the solid nature of the graft. The third modality of distraction osteogenesis is also a valid and faster approach. Nonetheless, owing to this technique's inherent shortcomings, this method is currently deprecated. The purpose of this review is to shed light on the state-of-the-art of the different modalities described for vertical ridge augmentation, including the indications, the step-by-step approach, and the effectiveness.
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Affiliation(s)
- Istvan A Urban
- Department of Periodontology and Oral Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Eduardo Montero
- Department of Periodontics, Universidad Complutense de Madrid, Madrid, Spain
| | - Ettore Amerio
- Department of Periodontology, Universitat Internacional de Catalunya, Barcelona, Spain
| | - David Palombo
- Department of Periodontics, Universidad Complutense de Madrid, Madrid, Spain
| | - Alberto Monje
- Department of Periodontology and Oral Medicine, University of Michigan, Ann Arbor, Michigan, USA
- Department of Periodontology, Universitat Internacional de Catalunya, Barcelona, Spain
- Department of Periodontology, University of Bern, Bern, Switzerland
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Ariesanti Y, Octavianus PGM, Handayani AT, Abbas B. Characterization of Polyvinyl Alcohol-Collagen-Hydroxyapatite Composite Membrane from Lates calcarifer Scales for Guided Tissue and Bone Regeneration. Eur J Dent 2023; 17:1153-1162. [PMID: 36646107 PMCID: PMC10756778 DOI: 10.1055/s-0042-1759488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
OBJECTIVE To determine the chemical structure, tensile strength, porosity, and degradability of polyvinyl alcohol (PVA)-collagen-hydroxyapatite (HA) composite membranes for guided tissue and bone regeneration. MATERIALS AND METHODS The PVA-collagen-HA composite membrane was divided into three groups: the group without irradiation, the group with 15 kGy irradiation, and 25 kGy irradiation. Each group was tested for chemical structure with Fourier-transform infrared (FT-IR) at a wavelength of 400 to 4,000 cm-1. Tensile strength test was tested in dry and wet conditions with the standard method of American Standard Testing Mechanical (ASTM) D638, and porosity using scanning electron microscope and analyzed using ImageJ software. Degradability test immersed in a solution of phosphate-buffered saline. Data were analyzed using analysis of variance (ANOVA) and Tukey's test. RESULTS FT-IR test before and after storage for 30 days on three media showed a stable chemical structure with the same functional groups. ANOVA analysis showed a significant difference (p < 0.05) in the dry condition (p = 0.006), Tukey's test showed a significant difference in the 15 kGy and 25 kGy irradiated groups (p = 0.005), but the groups without irradiation had no significant difference with the 15 kGy (p = 0.285) and 25 kGy (p = 0.079) irradiation groups. In wet conditions, there was no significant difference (p > 0.05) in each group (p = 373). The size of the porosity in the group without irradiation, 15 kGy irradiation, and 25 kGy irradiation showed a size of 4.65, 6.51, and 8.08 m, respectively. The degradability test showed a decrease in weight in each group, with the total weight of the membrane being completely degraded from the most degraded to the least: the groups without irradiation, 15 kGy irradiation, and 25 kGy irradiation. The ANOVA test on the degradability test shows significant (p < 0.05) in the PVA-collagen-HA composite membrane group over time intervals (p = 0.000). Tukey's post hoc test showed a significant difference (p < 0.05) after 1 week between the groups without irradiation with 15 kGy (p = 0.023). CONCLUSION PVA-collagen-HA composite membrane has a stable chemical structure, optimal tensile strength, porosity, and ideal degradability as guided bone regeneration and guided tissue regeneration.
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Affiliation(s)
- Yessy Ariesanti
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Universitas Trisakti, Jakarta, Indonesia
| | | | - Annisa Tri Handayani
- Undergraduate Program, Faculty of Dentistry, Universitas Trisakti, Jakarta, Indonesia
| | - Basril Abbas
- National Research and Innovation Agency (BRIN), Jakarta, Indonesia
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Mantovani R, Fernandes Y, Meza-Mauricio J, Reino D, Gonçalves LS, Sousa LG, Almeida AL, Faveri M, Scombatti de Souza S. Influence of Different Porosities of Titanium Meshes on Bone Neoformation: Pre-Clinical Animal Study with Microtomographic and Histomorphometric Evaluation. J Funct Biomater 2023; 14:485. [PMID: 37888150 PMCID: PMC10607573 DOI: 10.3390/jfb14100485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/12/2023] [Accepted: 09/18/2023] [Indexed: 10/28/2023] Open
Abstract
The aim of this study was to evaluate the influence of different types of porosity of titanium meshes on the bone neoformation process in critical defects surgically created in rat calvaria, by means of microtomographic and histomorphometric analyses. Defects of 5 mm in diameter were created in the calvaria of 36 rats, and the animals were randomly treated and divided into the following groups (6 animals per group): NCOG (negative control, only blood clot), TEMG (Polytetrafluoroethylene-PTFE-membrane), SPTMG (small pore titanium mesh), SPMMG (small pore mesh + PTFE), LPTMG (large pore titanium mesh), and LPMMG (large pore mesh + PTFE). After 60 days, the animals were sacrificed, and the bone tissue formed was evaluated with micro-CT and histomorphometry. The data were compared using an ANOVA followed by the Tukey post-test (p ≤ 0.05). The microtomographic results showed that the SPTMG group presented the highest numerical value for bone volume/total volume (22.24 ± 8.97), with statistically significant differences for all the other groups except LPTMG. Considering the histomorphometric evaluation, groups with only porous titanium meshes showed higher values compared to the groups that used the PTFE membrane and the negative control. The SPTMG group presented higher values in the parameters of area (0.44 mm2 ± 0.06), extension (1.19 mm2 ± 0.12), and percentage (7.56 ± 1.45%) of neoformed bone. It was concluded that titanium mesh with smaller pores showed better results and that the association of PTFE membranes with titanium meshes did not improve the outcomes, suggesting a correlation between mesh porosity and underlying bone repair.
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Affiliation(s)
- Rafael Mantovani
- Department of Basic and Oral Biology, School of Dentistry of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto 14040-904, SP, Brazil; (R.M.); (L.G.S.)
| | - Ytalo Fernandes
- Department of Dentistry, Faculty Unicamps Goiânia, Rua 210, Setor Coimbra 386, Goiânia 74535-280, GO, Brazil;
| | - Jonathan Meza-Mauricio
- Department of Periodontology, Universidad Cientifica del Sur, Calle Cantuarias 398, Lima 15048, Miraflores, Peru;
| | - Danilo Reino
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo, Av do Café, s/n., Ribeirao Preto 14040-904, SP, Brazil; (D.R.); (L.S.G.); (A.L.A.)
| | - Laura Sanches Gonçalves
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo, Av do Café, s/n., Ribeirao Preto 14040-904, SP, Brazil; (D.R.); (L.S.G.); (A.L.A.)
| | - Luiz Gustavo Sousa
- Department of Basic and Oral Biology, School of Dentistry of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto 14040-904, SP, Brazil; (R.M.); (L.G.S.)
| | - Adriana Luisa Almeida
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo, Av do Café, s/n., Ribeirao Preto 14040-904, SP, Brazil; (D.R.); (L.S.G.); (A.L.A.)
| | - Marcelo Faveri
- Independent Researcher, Guarulhos 07072-000, SP, Brazil;
| | - Sergio Scombatti de Souza
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo, Av do Café, s/n., Ribeirao Preto 14040-904, SP, Brazil; (D.R.); (L.S.G.); (A.L.A.)
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Park WB, Villa M, Han JY, Lim HC, Kang P. Lateral Peri-Implantitis: Successful Management via Guided Bone Regeneration at Mandibular First Molar Implant. Medicina (Kaunas) 2023; 59:1691. [PMID: 37763809 PMCID: PMC10534790 DOI: 10.3390/medicina59091691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/08/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023]
Abstract
Infections occurring around implants are divided into marginal peri-implantitis and retrograde peri-implantitis (RPI). Marginal peri-implantitis starts in the crestal bone and progresses to the apical portion, and RPI starts in the apical bone and progresses to the coronal portion. However, lateral peri-implantitis (LPI) occurring on the side of the implant body has not yet been reported, and the cause is unclear. This 63-year-old male patient is a case of unusual bone resorption that occurred in the lateral portion of the implant body 26 months after lateral bone augmentation. The origin of LPI was an infection at the site of laterally augmented bone. Rather than implant removal, this report demonstrates an alternative treatment option of guided bone regeneration after the enucleation and detoxification of the implant surface with successful clinical and radiographic results for 2 years.
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Affiliation(s)
- Won-Bae Park
- Department of Periodontology, School of Dentistry, Kyung Hee University, Seoul 02447, Republic of Korea;
- Private Practice in Periodontics and Implant Dentistry, Seoul 02771, Republic of Korea
| | - Michael Villa
- Division of Periodontics, Section of Oral, Diagnostic and Rehabilitation Sciences, College of Dental Medicine, Columbia University, New York, NY 10032, USA;
| | - Ji-Young Han
- Department of Periodontology, Division of Dentistry, College of Medicine, Hanyang University, 222-1 Wangsimni-ro, Seongdong, Seoul 04763, Republic of Korea;
| | - Hyun-Chang Lim
- Department of Periodontology, Periodontal-Implant Clinical Research Institute, School of Dentistry, Kyunghee daero 23, Dongdaemoon, Seoul 02447, Republic of Korea
| | - Philip Kang
- Division of Periodontics, Section of Oral, Diagnostic and Rehabilitation Sciences, College of Dental Medicine, Columbia University, New York, NY 10032, USA;
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Čandrlić M, Tomas M, Matijević M, Kačarević ŽP, Bićanić M, Udiljak Ž, Butorac Prpić I, Miškulin I, Čandrlić S, Včev A. Regeneration of Buccal Wall Defects after Tooth Extraction with Biphasic Calcium Phosphate in Injectable Form vs. Bovine Xenograft: A Randomized Controlled Clinical Trial. Dent J (Basel) 2023; 11:223. [PMID: 37754343 PMCID: PMC10528832 DOI: 10.3390/dj11090223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/12/2023] [Accepted: 09/15/2023] [Indexed: 09/28/2023] Open
Abstract
Bone healing after tooth extraction may be affected by defects of the alveolus buccal wall, such as fenestrations and dehiscences. Therefore, to minimize dimensional changes it is advisable to perform alveolar ridge preservation after tooth extractions. Different biomaterials are used for this purpose. The aim of this study was to investigate the qualitative and quantitative histological changes in human biopsies taken after 6 months of healing of extraction sockets with buccal wall defects. For this purpose, the defects of 36 patients (18 per group) were treated with injectable biphasic calcium phosphate (I-BCP) or bovine xenograft (BX) after extraction. After six months of healing, biopsies were taken and proceeded to the histology laboratory. No evidence of an inflammatory response of the tissue was observed in the biopsies of either group, and the newly formed bone (NB) was in close contact with the remaining biomaterial (BM). The histomorphometric results showed that there was no statistically significant difference between the groups in the mean percentage of NB (p = 0.854), BM (p = 0.129), and soft tissue (p = 0.094). To conclude, both biomaterials exhibited osteoconductivity and biocompatibility and achieved satisfactory bone regeneration of buccal wall defects after tooth extraction.
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Affiliation(s)
- Marija Čandrlić
- Department of Dental Medicine, Faculty of Dental Medicine and Health Osijek, Josip Juraj Strossmayer University of Osijek, 31 000 Osijek, Croatia; (M.Č.); (M.T.); (M.B.); (Ž.U.); (I.B.P.)
| | - Matej Tomas
- Department of Dental Medicine, Faculty of Dental Medicine and Health Osijek, Josip Juraj Strossmayer University of Osijek, 31 000 Osijek, Croatia; (M.Č.); (M.T.); (M.B.); (Ž.U.); (I.B.P.)
| | - Marko Matijević
- Community Healthcare Center of Osijek-Baranja County, 31 000 Osijek, Croatia;
| | - Željka Perić Kačarević
- Department of Anatomy, Histology, Embriology, Pathology Anatomy and Pathology Histology, Faculty of Dental Medicine and Health Osijek, Josip Juraj Strossmayer University of Osijek, 31 000 Osijek, Croatia;
- Botiss Biomaterials GmbH, 15806 Zossen, Germany
| | - Marijana Bićanić
- Department of Dental Medicine, Faculty of Dental Medicine and Health Osijek, Josip Juraj Strossmayer University of Osijek, 31 000 Osijek, Croatia; (M.Č.); (M.T.); (M.B.); (Ž.U.); (I.B.P.)
| | - Žarko Udiljak
- Department of Dental Medicine, Faculty of Dental Medicine and Health Osijek, Josip Juraj Strossmayer University of Osijek, 31 000 Osijek, Croatia; (M.Č.); (M.T.); (M.B.); (Ž.U.); (I.B.P.)
| | - Ivana Butorac Prpić
- Department of Dental Medicine, Faculty of Dental Medicine and Health Osijek, Josip Juraj Strossmayer University of Osijek, 31 000 Osijek, Croatia; (M.Č.); (M.T.); (M.B.); (Ž.U.); (I.B.P.)
| | - Ivan Miškulin
- Department of Public Health, Faculty of Medicine Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia;
| | - Slavko Čandrlić
- Department of Interdisciplinary Areas, Faculty of Dental Medicine and Health Osijek, Josip Juraj Strossmayer University of Osijek, Crkvena 21, 31 000 Osijek, Croatia;
| | - Aleksandar Včev
- Department of Pathophysiology, Physiology and Immunology, Faculty of Dental Medicine and Health Osijek, Josip Juraj Strossmayer University of Osijek, 31 000 Osijek, Croatia
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Abtahi S, Chen X, Shahabi S, Nasiri N. Resorbable Membranes for Guided Bone Regeneration: Critical Features, Potentials, and Limitations. ACS Mater Au 2023; 3:394-417. [PMID: 38089090 PMCID: PMC10510521 DOI: 10.1021/acsmaterialsau.3c00013] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 06/01/2023] [Accepted: 06/02/2023] [Indexed: 03/22/2024]
Abstract
Lack of horizontal and vertical bone at the site of an implant can lead to significant clinical problems that need to be addressed before implant treatment can take place. Guided bone regeneration (GBR) is a commonly used surgical procedure that employs a barrier membrane to encourage the growth of new bone tissue in areas where bone has been lost due to injury or disease. It is a promising approach to achieve desired repair in bone tissue and is widely accepted and used in approximately 40% of patients with bone defects. In this Review, we provide a comprehensive examination of recent advances in resorbable membranes for GBR including natural materials such as chitosan, collagen, silk fibroin, along with synthetic materials such as polyglycolic acid (PGA), polycaprolactone (PCL), polyethylene glycol (PEG), and their copolymers. In addition, the properties of these materials including foreign body reaction, mechanical stability, antibacterial property, and growth factor delivery performance will be compared and discussed. Finally, future directions for resorbable membrane development and potential clinical applications will be highlighted.
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Affiliation(s)
- Sara Abtahi
- NanoTech
Laboratory, School of Engineering, Faculty of Science and Engineering, Macquarie University, Sydney 2109, Australia
- Department
of Dental Biomaterials, School of Dentistry, Tehran University of Medical Sciences, Tehran 1416753955, Iran
| | - Xiaohu Chen
- NanoTech
Laboratory, School of Engineering, Faculty of Science and Engineering, Macquarie University, Sydney 2109, Australia
| | - Sima Shahabi
- Department
of Dental Biomaterials, School of Dentistry, Tehran University of Medical Sciences, Tehran 1416753955, Iran
| | - Noushin Nasiri
- NanoTech
Laboratory, School of Engineering, Faculty of Science and Engineering, Macquarie University, Sydney 2109, Australia
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Alqahtani AM. Guided Tissue and Bone Regeneration Membranes: A Review of Biomaterials and Techniques for Periodontal Treatments. Polymers (Basel) 2023; 15:3355. [PMID: 37631412 PMCID: PMC10457807 DOI: 10.3390/polym15163355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/05/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
This comprehensive review provides an in-depth analysis of the use of biomaterials in the processes of guided tissue and bone regeneration, and their indispensable role in dental therapeutic interventions. These interventions serve the critical function of restoring both structural integrity and functionality to the dentition that has been lost or damaged. The basis for this review is laid through the exploration of various relevant scientific databases such as Scopus, PubMed, Web of science and MEDLINE. From a meticulous selection, relevant literature was chosen. This review commences by examining the different types of membranes used in guided bone regeneration procedures and the spectrum of biomaterials employed in these operations. It then explores the manufacturing technologies for the scaffold, delving into their significant impact on tissue and bone regenerations. At the core of this review is the method of guided bone regeneration, which is a crucial technique for counteracting bone loss induced by tooth extraction or periodontal disease. The discussion advances by underscoring the latest innovations and strategies in the field of tissue regeneration. One key observation is the critical role that membranes play in guided reconstruction; they serve as a barrier, preventing the entry of non-ossifying cells, thereby promoting the successful growth and regeneration of bone and tissue. By reviewing the existing literature on biomaterials, membranes, and scaffold manufacturing technologies, this paper illustrates the vast potential for innovation and growth within the field of dental therapeutic interventions, particularly in guided tissue and bone regeneration.
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Affiliation(s)
- Ali M Alqahtani
- Department of Restorative Dental Sciences, College of Dentistry, King Khalid University, Al Fara, Abha 62223, Saudi Arabia
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Romito GA, Soares HH, do Amaral GCLS, Fonseca MA, Sapata VM, Conde MC, Hammerle CHF, Schwarz F, Villar CC. Radiographic outcomes of ridge reconstruction with autogenous bone block versus collagenated xenogeneic bone block: A randomized clinical trial. Clin Oral Implants Res 2023; 34:863-871. [PMID: 37309738 DOI: 10.1111/clr.14114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 05/31/2023] [Accepted: 06/02/2023] [Indexed: 06/14/2023]
Abstract
AIM To compare, at different levels from the alveolar crest, the radiographic outcomes of equine-derived collagenated xenogeneic bone blocks (CXBB) and autogenous bone blocks (ABB) used for lateral alveolar ridge augmentation. MATERIALS AND METHODS Sixty-four patients with tooth gaps in atrophic alveolar ridges with ≤4 mm were randomly assigned to lateral augmentation using CXBB or ABB. The lateral bone thickness (LBT) was measured 2, 4, 6, 8, and 10 mm below the alveolar crest using CBCT scans obtained before augmentation surgery and at 30 weeks, prior to implant placement. Statistical analysis was performed using Shapiro-Wilk, Fisher's exact, Mann-Whitney, and Wilcoxon signed-rank tests. RESULTS Both CXBB and ABB resulted in significant total and buccal LBT gains at 2, 4, 6, 8, and 10 mm. LBT gains were similar between CXBB- and ABB-augmented sites, except for greater buccal LBT gains at 8 mm at CXBB-augmented sites. While ABB-augmented sites gained vertical bone height, CXBB-treated sites suffered vertical bone loss (CXBB: -0.16 mm; ABB: 0.38 mm, p < .0009). CONCLUSIONS CXBB and ABB were both associated with significant and similar LBT gains at 30 weeks.
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Affiliation(s)
| | - Herbert Horiuti Soares
- Discipline of Periodontics, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | | | | | - Vitor Marques Sapata
- Discipline of Periodontics, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Marina Clemente Conde
- Discipline of Periodontics, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | | | - Frank Schwarz
- Department of Oral Surgery and Implantology, Goethe University, Carolinum, Frankfurt, Germany
| | - Cristina Cunha Villar
- Discipline of Periodontics, School of Dentistry, University of São Paulo, São Paulo, Brazil
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Ko YC, Lee J, Lee D, Seol YJ, Koo KT, Lee YM. Progression of experimental peri-implantitis in guided bone regeneration and pristine bone: A preclinical in vivo study. J Periodontol 2023; 94:1032-1044. [PMID: 36799425 DOI: 10.1002/jper.22-0586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 02/09/2023] [Indexed: 02/18/2023]
Abstract
BACKGROUND Guided bone regeneration (GBR) is the most widely used technique for overcoming the deficiency of alveolar bone. However, the progression of peri-implantitis in regenerative and pristine bone sites has not been fully investigated. The aim of this study is to compare experimental peri-implantitis around implants placed in pristine bone and GBR sites. METHODS Bilateral mandibular first molars were extracted from six beagle dogs, and standardized horizontal ridge defect was simultaneously created at predetermined site in unilateral mandible. After 8 weeks, guided bone regeneration procedure was conducted at the defect site. After 16 weeks, implants (ϕ 3.6×8.0 mm) were placed at both extracted sites. This study included 3 months of active breakdown and another 3 months of spontaneous progression period. Radiographs were taken at each phase and specimens were obtained for histological, immunohistochemical, and polarized light microscopic analysis. RESULTS Marginal bone loss around implant did not show the significant differences between pristine bone and GBR sites during spontaneous progression period. In immunohistochemical analysis, inflammatory and immune-related cells were predominantly detected in peri-implantitis-affected area rather than unaffected area. In the polarized light microscopic analysis, substantial reductions in the amount and thickness of collagen fibers were observed in peri-implantitis-affected area compared with unaffected tissues. However, there were no significant differences in histological, immunohistochemical, polarized light microscopic outcomes between pristine bone and GBR sites. CONCLUSION Previous hard tissue grafting at the implant sites did not affect experimental peri-implantitis and exhibited similar radiographic, histological, immunohistochemical, and polarized light microscopic outcomes compared with those of pristine bone sites.
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Affiliation(s)
- Young-Chang Ko
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Jungwon Lee
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
- One-Stop Specialty Center, Seoul National University Dental Hospital, Seoul, Republic of Korea
| | - Dongseob Lee
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Yang-Jo Seol
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Ki-Tae Koo
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Yong-Moo Lee
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
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Dudeck D, Warmusz O, Reichman-Warmusz E, Kurtzman GM. Treatment of an ossifying fibroma of the mandible with endodontic microsurgery and grafting with a biphasic calcium sulfate material: a case report. Ann Med Surg (Lond) 2023; 85:4167-4173. [PMID: 37554914 PMCID: PMC10406028 DOI: 10.1097/ms9.0000000000001068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 07/01/2023] [Indexed: 08/10/2023] Open
Abstract
UNLABELLED A significant percentage of lesions of endodontic origin require surgical management due to the possible diagnosis of odontogenic cysts and tumors in the maxilla and mandible. Ossifying fibroma is a benign fibro-osseous lesion that typically presents as a painless, slow-growing, and expansile lesion that appears as a well-demarcated lesion with a variable degree of internal calcification on radiography. Treatment results in a large osseous defect, utilization of a graft to fill the void accelerates healing and prevents complications that may result from failure to fill by the host response. CASE PRESENTATION Following endodontic surgery placement of osseous graft material via Guided Tissue Regeneration to fill the defect aids to accelerate fill of the defect on a healthy 26-year-old female patient. A case discussing the one-step treatment of an ossifying fibroma of the anterior part of the mandible following endodontic microsurgery with associated retrograde fill of the apex, then site grating with biphasic calcium sulfate (Bond Apatite®) used in regeneration of the osseous defect related to the lesion and resulting surgery. CLINICAL DISCUSSION Histologically, the ossifying fibroma is dominated by connective tissue containing cell rich areas with a few fragments of fibrosis. Moreover, in the connective tissue numerous small fragments of spongy and compact bone with areas of partial necrosis present and a significant number of inflammatory cells are observed. Surgical removal of the cyst with thorough curettage of the osseous walls and grafting of the defect provides predictable healing and the desired clinical results sought. Utilization of the biphasic calcium sulfate graft material allows the elimination of the need to overlay the area with a membrane before the flap due to its hard set and the prevention of soft tissue ingrowth into the graft material during the healing phase. Additionally, the hard set of the material allows tenting of the area to maintain the desired volume and ridge contour. Conversion of the graft material depending on the volume placed to host bone occurs over a 3-6 month period. CONCLUSION The case report presented, as well as the authors experience mimics the literature on biphasic calcium sulfate in its use as an osseous graft material and is an effective method for the repair of osseous defects that result from the removal of tumors and cysts of the maxilla and mandible. Treatment of an ossifying fibroma is an ideal application of the use of this biphasic calcium sulfate material allowing tenting of the surgical site over the defect created after cyst removal without the need for resorbable collagen membranes. This simplifies its use and decreases material costs that may hamper patient acceptance of treatment without a decrease in expected clinical results.
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Affiliation(s)
- Damian Dudeck
- “Artmedica” Ambulatory Oral Surgery and Implantology, Thorn
| | - Oliwia Warmusz
- Department of Histology and Cell Pathology in Zabrze, School of Medicine with the Division of Dentistry, Medical University of Silesia in Katowice
| | - Edyta Reichman-Warmusz
- Department of Histology and Cell Pathology in Zabrze, School of Medicine with the Division of Dentistry, Medical University of Silesia in Katowice
- University of Technology, Department of Medicine, Katowice, Poland
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Di Gioia S, Milillo L, Hossain MN, Carbone A, Petruzzi M, Conese M. Blood Clotting Dissolution in the Presence of a Magnetic Field and Preliminary Study with MG63 Osteoblast-like Cells-Further Developments for Guided Bone Regeneration? Bioengineering (Basel) 2023; 10:888. [PMID: 37627773 PMCID: PMC10451701 DOI: 10.3390/bioengineering10080888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/21/2023] [Accepted: 07/24/2023] [Indexed: 08/27/2023] Open
Abstract
BACKGROUND The influence of a magnetic field on the activation of bone cells and remodelling of alveolar bone is known to incite bone regeneration. Guided Bone Regeneration (GBR) aims to develop biomimetic scaffolds to allow for the functioning of the barrier and the precise succession of wound healing steps, including haemostasis. The effect of a magnetic field on blood clot dissolution has not been studied yet. METHODS We conducted a methodological study on the clot stability in the presence of a static magnetic field (SMF). Preformed whole blood (WB) clots were treated with either a broad proteolytic enzyme (trypsin) or a specific fibrinolytic agent, i.e., tissue-type plasminogen activator (t-PA). MG63 osteoblast-like cells were added to preformed WB clots to assess cell proliferation. RESULTS After having experienced a number of clotting and dissolution protocols, we obtained clot stability exerted by SMF when tissue factor (for clotting) and t-PA + plasminogen (for fibrinolysis) were used. WB clots allowed osteoblast-like cells to survive and proliferate, however no obvious effects of the magnetic field were noted. CONCLUSIONS Paramagnetic properties of erythrocytes may have influenced the reduction in clot dissolution. Future studies are warranted to fully exploit the combination of magnetic forces, WB clot and cells in GBR applied to orthodontics and prosthodontics.
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Affiliation(s)
- Sante Di Gioia
- Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy; (S.D.G.); (M.N.H.); (A.C.)
| | | | - Md Niamat Hossain
- Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy; (S.D.G.); (M.N.H.); (A.C.)
| | - Annalucia Carbone
- Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy; (S.D.G.); (M.N.H.); (A.C.)
| | - Massimo Petruzzi
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70126 Bari, Italy;
| | - Massimo Conese
- Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy; (S.D.G.); (M.N.H.); (A.C.)
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Pla R, Sanz-Esporrin J, Noguerol F, Vignoletti F, Gamarra P, Sanz M. A Synthetic Bio-Absorbable Membrane in Guided Bone Regeneration in Dehiscence-Type Defects: An Experimental In Vivo Investigation in Dogs. Bioengineering (Basel) 2023; 10:841. [PMID: 37508867 PMCID: PMC10376221 DOI: 10.3390/bioengineering10070841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/15/2023] [Accepted: 06/21/2023] [Indexed: 07/30/2023] Open
Abstract
This study aimed to determine the performance and characteristics of a synthetic barrier membrane of polylactic acid and acetyl butyl citrate (PLAB) for the lateral bone augmentation of peri-implant dehiscence defects (mean height × depth = 3 mm × 1 mm). In eight dogs, three treatment groups were randomly allocated at each chronic peri-implant dehiscence-type defect: (i) a deproteinized bovine bone mineral covered by a synthetic barrier membrane (test group), (ii) a deproteinized bovine bone mineral covered by a natural collagen membrane (positive control), and (iii) a synthetic barrier membrane (negative control). After 4 and 12 weeks of submerged healing, dissected tissue blocks were processed for calcified and decalcified histological analysis. Histometric measurements for tissue and bone width were performed, and bone-to-implant contact and alkaline phosphatase expression where measured. After 4 and 12 weeks of healing, no statistical differences between the groups were observed for the histometric measurements. The expression of alkaline phosphatase was higher in the positive control group after 4 weeks followed by the positive and negative controls (5.25 ± 4.09, 4.46 ± 3.03, and 4.35 ± 2.28%, p > 0.05) and 12 weeks followed by the negative and positive controls (4.3 ± 2.14, 3.21 ± 1.53, and 2.39 ± 1.03%, p > 0.05). Concerning the bone-to-implant contact, after 4 weeks, the test group obtained the highest results (39.54 ± 48.7) vs. (31.24 ± 42.6) and (20.23 ± 36.1), respectively, while after 12 weeks, the positive control group obtained the highest Bone to imaplant contact (BIC) results, followed by the test and negative controls, (35.91 ± 24.9) vs. (18.41 ± 20.5) and (24.3 ± 32.1), respectively; no statistically significant differences were obtained. Within the limitations of the study, new bone formation can be achieved in guided bone regeneration procedures simultaneously with implant placement either with the use of a PLAB membrane or a native collagen membrane, although these differences were not statistically significant.
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Affiliation(s)
- Rafael Pla
- Faculty of Dentistry, University Complutense of Madrid (UCM), 28040 Madrid, Spain
| | - Javier Sanz-Esporrin
- Faculty of Dentistry, University Complutense of Madrid (UCM), 28040 Madrid, Spain
| | - Fernando Noguerol
- Faculty of Dentistry, University Complutense of Madrid (UCM), 28040 Madrid, Spain
| | - Fabio Vignoletti
- ETEP (Etiology and Therapy of Periodontal and Peri-Implant Diseases) Research Group, Faculty of Dentistry, University Complutense of Madrid (UCM), 28040 Madrid, Spain
| | - Pablo Gamarra
- Faculty of Dentistry, University Complutense of Madrid (UCM), 28040 Madrid, Spain
| | - Mariano Sanz
- Faculty of Dentistry, University Complutense of Madrid (UCM), 28040 Madrid, Spain
- ETEP (Etiology and Therapy of Periodontal and Peri-Implant Diseases) Research Group, Faculty of Dentistry, University Complutense of Madrid (UCM), 28040 Madrid, Spain
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Gülses A, Dohrmann L, Aktas OC, Wagner J, Veziroglu S, Tjardts T, Hartig T, Liedtke KR, Wiltfang J, Acil Y, Flörke C. Decontaminative Properties of Cold Atmospheric Plasma Treatment on Collagen Membranes Used for Guided Bone Regeneration. J Funct Biomater 2023; 14:372. [PMID: 37504867 PMCID: PMC10381767 DOI: 10.3390/jfb14070372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/05/2023] [Accepted: 07/11/2023] [Indexed: 07/29/2023] Open
Abstract
Background cold atmospheric plasma (CAP) is known to be a surface-friendly yet antimicrobial and activating process for surfaces such as titanium. The aim of the present study was to describe the decontaminating effects of CAP on contaminated collagen membranes and their influence on the properties of this biomaterial in vitro. Material and Methods: A total of n = 18 Bio-Gide® (Geistlich Biomaterials, Baden-Baden, Germany) membranes were examined. The intervention group was divided as follows: n = 6 membranes were treated for one minute, and n = 6 membranes were treated for five minutes with CAP using kINPen® MED (neoplas tools GmbH, Greifswald, Germany) with an output of 5 W, respectively. A non-CAP-treated group (n = 6) served as the control. The topographic alterations were evaluated via X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). Afterward, the samples were contaminated with E. faecalis for 6 days, and colony-forming unit (CFU) counts and additional SEM analyses were performed. The CFUs increased with CAP treatment time in our analyses, but SEM showed that the surface of the membranes was essentially free from bacteria. However, the deeper layers showed remaining microbial conglomerates. Furthermore, we showed, via XPS analysis, that increasing the CAP time significantly enhances the carbon (carbonyl group) concentration, which also correlates negatively with the decontaminating effects of CAP. Conclusions: Reactive carbonyl groups offer a potential mechanism for inhibiting the growth of E. faecalis on collagen membranes after cold atmospheric plasma treatment.
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Affiliation(s)
- Aydin Gülses
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, 24105 Kiel, Germany
| | - Lina Dohrmann
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, 24105 Kiel, Germany
| | - Oral Cenk Aktas
- Chair for Multicomponent Materials, Institute for Materials Science, Faculty of Engineering, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany
| | - Juliane Wagner
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, 24105 Kiel, Germany
| | - Salih Veziroglu
- Chair for Multicomponent Materials, Institute for Materials Science, Faculty of Engineering, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany
- Kiel Nano, Surface and Interface Science KiNSIS, Kiel University, Christian Albrechts-Platz 4, 24118 Kiel, Germany
| | - Tim Tjardts
- Chair for Multicomponent Materials, Institute for Materials Science, Faculty of Engineering, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany
| | - Torge Hartig
- Chair for Multicomponent Materials, Institute for Materials Science, Faculty of Engineering, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany
| | - Kim Rouven Liedtke
- Department of Orthopedics, University Hospital Schleswig-Holstein, 24105 Kiel, Germany
| | - Jörg Wiltfang
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, 24105 Kiel, Germany
| | - Yahya Acil
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, 24105 Kiel, Germany
| | - Christian Flörke
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, 24105 Kiel, Germany
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65
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Li Q, He W, Li W, Luo S, Zhou M, Wu D, Li Y, Wu S. Band-Aid-Like Self-Fixed Barrier Membranes Enable Superior Bone Augmentation. Adv Sci (Weinh) 2023; 10:e2206981. [PMID: 37029705 PMCID: PMC10238180 DOI: 10.1002/advs.202206981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 02/10/2023] [Indexed: 06/04/2023]
Abstract
In guided bone regeneration surgery, a barrier membrane is usually used to inhibit soft tissue from interfering with osteogenesis. However, current barrier membranes usually fail to resist the impact of external forces on bone-augmented region, thus causing severe displacement of membranes and their underlying bone graft materials, eventually leading to unsatisfied bone augmentation. Herein, a new class of local double-layered adhesive barrier membranes (ABMs) is developed to successfully immobilize bone graft materials. The air-dried adhesive hydrogel layers with suction-adhesion properties enable ABMs to firmly adhere to the wet bone surface through a "stick-and-use" band-aid-like strategy and effectively prevent the displacement of membranes and the leakage of bone grafts in uncontained bone defect treatment. Furthermore, the strategy is versatile for preparing diverse adhesive barrier membranes and immobilizing different bone graft materials for various surgical regions. By establishing such a continuous barrier for the bone graft material, this strategy may open a novel avenue for designing the next-generation barrier membranes.
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Affiliation(s)
- Qianqian Li
- Hospital of StomatologyGuanghua School of StomatologyGuangdong Provincial Key Laboratory of StomatologySun Yat‐sen UniversityGuangzhou510055P. R. China
| | - Wenyi He
- PCFM LabSchool of ChemistrySun Yat‐sen UniversityGuangzhou510006P. R. China
| | - Weiran Li
- Hospital of StomatologyGuanghua School of StomatologyGuangdong Provincial Key Laboratory of StomatologySun Yat‐sen UniversityGuangzhou510055P. R. China
| | - Shulu Luo
- Hospital of StomatologyGuanghua School of StomatologyGuangdong Provincial Key Laboratory of StomatologySun Yat‐sen UniversityGuangzhou510055P. R. China
| | - Minghong Zhou
- Medical Research InstituteGuangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences)Southern Medical UniversityGuangzhou510080P. R. China
| | - Dingcai Wu
- PCFM LabSchool of ChemistrySun Yat‐sen UniversityGuangzhou510006P. R. China
| | - Yan Li
- Hospital of StomatologyGuanghua School of StomatologyGuangdong Provincial Key Laboratory of StomatologySun Yat‐sen UniversityGuangzhou510055P. R. China
| | - Shuyi Wu
- Hospital of StomatologyGuanghua School of StomatologyGuangdong Provincial Key Laboratory of StomatologySun Yat‐sen UniversityGuangzhou510055P. R. China
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Rugeles-Páez NC, Quintero WL, Stashenko EE, García LT. Citral-rich fractions of Lippia alba essential oils as immunoresponsive and anti-Candida albicans additives for collagen membranes in guided bone regeneration. J Oral Sci 2023:23-0058. [PMID: 37258231 DOI: 10.2334/josnusd.23-0058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
PURPOSE The aim of this study was to optimize the immunoresponsive and anti-Candida albicans (C. albicans) properties of guided bone regeneration-resorbable membranes (collagen) using additives based on synergistic mixtures of chlorhexidine with terpene-enriched fractions from Lippia alba essential oils (EO). METHODS The anti-C. albicans activity of the fractions (individually or combined with chlorhexidine) was evaluated using planktonic and sessile cultures. J774A.1 murine macrophage cells were used to determine the cytotoxicity and immunoresponsive effects of the therapies. RESULTS The anti-planktonic and anti-sessile performance of chlorhexidine on C. albicans was improved 2- to 4-fold by supplementation with citral-rich fractions. On macrophages, this fraction also exhibited a potentially cytoprotective action against the toxic effects of chlorhexidine, minimizing damage to the cell membrane, mitochondrial membrane potential, and nuclear integrity. Macrophages growing on collagen-membrane fragments and stimulated with the citral fraction (alone or with chlorhexidine) showed a significant increase in releasing the osteogenic cytokine TNF-α and enhancing the IL-4. CONCLUSION This combined therapy appears as a promising platform for the development of a prophylactic or therapeutic biocidal solution that can optimize the pharmacological characteristics of chlorhexidine (epithelium tolerance and anti-C. albicans consolidation on surfaces), as well as potentiating the immunoresponsive properties of collagen membranes.
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Affiliation(s)
| | - Wendy L Quintero
- Postgraduate Department of Infectious Disease, University of Santander
- Basic Biomedical Science Corporation, University of Antioquia
| | - Elena E Stashenko
- National Research Center for the Agroindustrialization of Aromatic and Medicinal Tropical Vegetal Species, Industrial University of Santander
| | - Liliana T García
- Postgraduate Department of Infectious Disease, University of Santander
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Fonseca Tavares WL, Diniz Viana AC, Lucas Ferreira MV, da Costa Ferreira G, da Costa Ferreira I, Alves de Mesquita R, Amaral RR. Guided tissue regeneration in class IV external cervical resorption: A case report. J Endod 2023:S0099-2399(23)00284-4. [PMID: 37245653 DOI: 10.1016/j.joen.2023.05.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 05/07/2023] [Accepted: 05/20/2023] [Indexed: 05/30/2023]
Abstract
External cervical resorption (ECR) is a type of dental resorption that originates from the loss of the cementum's protective layer. The direct exposure of dentin to the periodontal ligament may lead to the invasion of clastic cells through an entry point on the external root surface into the dentinal tissue, causing resorption. Depending on the extension of ECR, different treatments are proposed. Although the literature presents distinct materials and methods for restoring ECR areas, an existing gap is related to care in the treatment of the supporting periodontal tissue. Guided tissue regeneration/guided bone regeneration (GTR/GBR) includes the stimulation of bone formation in bone defects using different types of membranes (resorbable and non-resorbable), regardless of its association with bone substitutes or grafts. Despite the benefits of guided bone regeneration, the application of this method in cases of ECR is still under-explored in the literature. Thus, the present case report uses GTR with xenogenic material and polydioxanone (PDO) membrane in a case of class IV ECR. The success of the present case is related to the correct diagnosis and treatment plan. Complete debridement of resorption areas and restoration with biodentine were effective in tooth repair. GTR contributed to the stabilization of supporting periodontal tissues. The association of the xenogeneic bone graft with the PDO membrane proved to be a viable option for restoring the health of the periodontium.
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Affiliation(s)
- Warley Luciano Fonseca Tavares
- Department of Restorative Dentistry, Faculty of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
| | - Ana Cecília Diniz Viana
- Department of Restorative Dentistry, Faculty of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Gabriela da Costa Ferreira
- Department of Restorative Dentistry, Faculty of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Isabella da Costa Ferreira
- Department of Restorative Dentistry, Faculty of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ricardo Alves de Mesquita
- Department of Clinic, Pathology and Surgery, Faculty of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Rodrigo Rodrigues Amaral
- College of Medicine and Dentistry, Division of Tropical Health and Medicine, James Cook University, Australia
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Petposri S, Thuaksuban N, Buranadham S, Suwanrat T, Punyodom W, Supphaprasitt W. Physical Characteristics and Biocompatibility of 3D-Printed Polylactic-Co-Glycolic Acid Membranes Used for Guided Bone Regeneration. J Funct Biomater 2023; 14:jfb14050275. [PMID: 37233385 DOI: 10.3390/jfb14050275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/08/2023] [Accepted: 05/12/2023] [Indexed: 05/27/2023] Open
Abstract
Bioresorbable polymeric membranes for guided bone regeneration (GBR) were fabricated using the three-dimensional printing technique. Membranes made of polylactic-co-glycolic acid (PLGA), which consist of lactic acid (LA) and glycolic acid in ratios of 10:90 (group A) and 70:30 (group B), were compared. Their physical characteristics including architecture, surface wettability, mechanical properties, and degradability were compared in vitro, and their biocompatibilities were compared in vitro and in vivo. The results demonstrated that the membranes of group B had mechanical strength and could support the proliferation of fibroblasts and osteoblasts significantly better than those of group A (p < 0.05). The degradation rate in Group B was significantly lower than that in Group A, but they significantly produced less acidic environment (p < 0.05). In vivo, the membranes of group B were compared with the commercially available collagen membranes (group C). The amount of newly formed bone of rat's calvarial defects covered with the membranes of group C was stable after week 2, whereas that of group B increased over time. At week 8, the new bone volumes in group B were greater than those in group C (p > 0.05). In conclusion, the physical and biological properties of the PLGA membrane (LA:GA, 70:30) were suitable for GBR.
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Affiliation(s)
- Sidabhat Petposri
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hatyai 90112, Songkhla, Thailand
| | - Nuttawut Thuaksuban
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hatyai 90112, Songkhla, Thailand
| | - Supanee Buranadham
- Department of Prosthetic Dentistry, Faculty of Dentistry, Prince of Songkla University, Hatyai 90112, Songkhla, Thailand
| | - Trin Suwanrat
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hatyai 90112, Songkhla, Thailand
| | - Winita Punyodom
- Department of Chemistry, Faculty of Science, Chiang Mai University, Amphur Muang 50200, Chiang Mai, Thailand
| | - Woraporn Supphaprasitt
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hatyai 90112, Songkhla, Thailand
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Tang H, Qi C, Bai Y, Niu X, Gu X, Fan Y. Incorporation of Magnesium and Zinc Metallic Particles in PLGA Bi-layered Membranes with Sequential Ion Release for Guided Bone Regeneration. ACS Biomater Sci Eng 2023. [PMID: 37162308 DOI: 10.1021/acsbiomaterials.3c00179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Guided bone regeneration (GBR) membranes are commonly used for periodontal tissue regeneration. Due to the complications of existing GBR membranes, the design of bioactive membranes is still relevant. GBR membranes with an asymmetric structure can accommodate the functional requirements of different interfacial tissues. Here, poly(lactic acid-glycolic acid) (PLGA) was selected as the matrix for preparing a bi-layered membrane with both dense and porous structure. The dense layer for blocking soft tissues was incorporated with zinc (Zn) particles, while the porous layer for promoting bone regeneration was co-incorporated with magnesium (Mg) and Zn particles. Mg/Zn-embedded PLGA membranes exhibited 166% higher mechanical strength in comparison with pure PLGA membranes and showed suitable degradation properties with a sequential ion release behavior of Mg2+ first and continuously Zn2+. More importantly, the release of Zn2+ from bi-layered PLGA endowed GBR membranes with excellent antibacterial activity (antibacterial rate > 69.3%) as well as good cytocompatibility with MC3T3-E1 (mouse calvaria pre-osteoblastic cells) and HGF-1 (human gingival fibroblast cells). Thus, the asymmetric bi-layered PLGA membranes embedded with Mg and Zn particles provide a simple and effective strategy to not only reinforce the PLGA membrane but also endow membranes with osteogenic and antibacterial activity due to the continuous ion release profile, which serves as a promising candidate for use in GBR therapy.
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Affiliation(s)
- Hongyan Tang
- Key Laboratory of Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Chengkai Qi
- Key Laboratory of Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Yanjie Bai
- Stomatology Department, Peking University Third Hospital, Beijing 100191, China
| | - Xufeng Niu
- Key Laboratory of Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Xuenan Gu
- Key Laboratory of Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Yubo Fan
- Key Laboratory of Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
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Subramanya AP, Prabhuji MLV. Synthetic mineral collagen composite bone graft with ribose cross linked collagen membrane for lateral ridge augmentation. J Indian Soc Periodontol 2023; 27:332-335. [PMID: 37346848 PMCID: PMC10281312 DOI: 10.4103/jisp.jisp_306_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 11/17/2022] [Accepted: 11/27/2022] [Indexed: 06/23/2023] Open
Abstract
A combination of calcium phosphate-based mineral with carbon apatite structure and type 1 collagen derived from bovine Achilles tendon has been introduced for augmentation of alveolar ridge and periodontal defects. Carbon apatite structure of mineral mimics natural bone in terms of resorption and remodeling, while collagen provides three-dimensional structure; both together aid in higher osteoconduction. The aim of present case report was to investigate if synthetic mineral collagen composite bone graft (CBG) with ribose cross-linked collagen membrane (RCLM) may be successfully used to obtain lateral augmentation of alveolar ridge that is planned for dental implant placement. Lateral augmentation of ridge was performed by elevating a full-thickness mucoperiosteal flap, followed by debridement and decortication of the defect area. CBG was soaked in saline and molded onto the defect area. RCLM was used to cover the graft site, followed by stabilization of membrane and the flap by suturing. Preoperative and postoperative ridge widths were measured using cone-beam computed tomography scans. The use of synthetic mineral collagen CBG with RCLM for lateral ridge augmentation may lead to increase in ridge width making it suitable for dental implant placement.
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Affiliation(s)
- Ashwin Parakkaje Subramanya
- Department of Periodontology, Krishnadevaraya College of Dental Sciences and Hospital, Bengaluru, Karnataka, India
| | - M. L. V. Prabhuji
- Department of Periodontology, Krishnadevaraya College of Dental Sciences and Hospital, Bengaluru, Karnataka, India
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Simoni Malushi E, Isufi R, Kadaifciu D. Guided Bone Regeneration Effects on Bone Quantity and Outcomes of Dental Implants in Patients With Insufficient Bone Support: A Single-Center Observational Study. Cureus 2023; 15:e38988. [PMID: 37378176 PMCID: PMC10292071 DOI: 10.7759/cureus.38988] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/14/2023] [Indexed: 06/29/2023] Open
Abstract
Background Guided bone regeneration (GBR) is used to influence on stabilization of dental implants in patients with insufficient bone quantity and anatomical problems. But many studies using GBR resulted in divergent results according to the efficiency of new bone quantity formation and implant survival. This research aimed to study the effects of GBR on the increase of bone quantity and short-term stabilization of dental implants in patients with insufficient bone support. Methodology The study included 26 patients that underwent the procedure for 40 dental implants from September 2020 to September 2021. In each case, the vertical bone support was intraoperatively measured, through the MEDIDENT Italia paradontal millimetric probe (Medident Italia, Carpi, Italy). The vertical bone defect was considered when the mean vertical depth between the abutment junction and the marginal bone was greater than 1mm up to 8mm. In the group with the presence of the vertical bone defect, GBR technique was used during the procedure of dental implants realized with synthetic bone graft, resorbable membrane, and platelet-rich fibrin (PRF), and the group was considered the study (GBR) group. The group of patients with no vertical bone defects (less than 1mm) and no need for any GBR technique use was considered the control (no-GBR) group. The bone support was evaluated again intraoperatively after six months in both groups when the healing abutments were positioned. The vertical bone defect for each group in baseline and after six months is presented as mean±SD and compared using a t-test. A t-test for Equality of Means was used to calculate the mean depth difference (MDD) between baseline and six months values in each group (GBR and no-GBR) and also between both groups. P-value ≤ 0.05 is considered statistically significant. Results Overall 40 dental implants were placed, 20 of them were included in the GBR group and 20 in the no-GBR group. In the GBR group, a statistically significant greater mean vertical bone defect in baseline (day 1), compared to the no-GBR group was found (-4.46±2.76 vs -0.27±0.22; MDD = -4.19 [-5.44 to -2.94] p<0.001). At six months of follow-up in the GBR group, a new bone around the implant was formed, presenting a significantly lower bone defect compared to the baseline measure (-0.39±0.43 vs -4.46±2.76; MDD = -4.07 mm [-5.37 to -2.78] p<0.001). In six months, no statistically significant difference between GBR and no-GBR group in bone support was found (-0.39±0.43 vs -0.27±0.22; MDD = -0.19 [-0.40 to -0.03] p=0.10). In each group, only one implant failure was observed. Conclusions The use of GBR showed an important reduction of vertical depth defect between healing abutment and marginal bone predisposing similar short-term stability and survival of dental implants. The use of GBR techniques could be essential in the stabilization of dental implants in patients with insufficient bone support.
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Affiliation(s)
| | - Renato Isufi
- Oral and Maxillofacial Surgery, University Dental Clinic, Tirana, ALB
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Chen D, Zheng L, Wang C, Huang Y, Huang H, Apicella A, Hu G, Wang L, Fan Y. Evaluation of surgical placement accuracy of customized CAD/CAM titanium mesh using screws-position-guided template: A retrospective comparative study. Clin Implant Dent Relat Res 2023. [PMID: 37057478 DOI: 10.1111/cid.13205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 02/27/2023] [Accepted: 03/25/2023] [Indexed: 04/15/2023]
Abstract
BACKGROUND Customized computer-aided-design/computer-aided-manufacturing (CAD/CAM) titanium meshes have been adopted for alveolar bone augmentation. But the inaccuracies between planned and created bone volume/contour are quite common, and the surgical placement of the customized mesh was considered as the first critical factor. However, the evaluation of surgical placement accuracy of customized mesh is currently lacking. PURPOSE The aim of this study was to evaluate the accuracy of the surgical placement of customized meshes. METHODS A total of 30 cases, 20 without the screws-position-guided template and 10 with the screws-position-guided template, were included in this study. The cone beam CT (CBCT) data sets of pre- and postoperative were converted into 3D models and digitally aligned. Then the actual placement of customized mesh and retainer titanium screws was compared to the virtual one to assess the surgical placement accuracy of customized mesh. At least 6 months after surgery, a new CBCT was taken and converted into 3D models. Planned bone volume, created bone volume, vertical bone augmentation, healing complications rate, pseudo-periosteum rate, exposure rate, and infection rate were all evaluated. RESULTS The 3D digital reconstruction/registration analysis showed that the average difference between actual placement and planned one of customized mesh in positive and negative directions was 2.69 ± 0.70 mm and -1.41 ± 0.90 mm, respectively, without the screws-position-guided template. And the mean difference values between the actual and planned placement of the screws on the X and Y axes were 0.74 ± 0.85 mm and 0.89 ± 0.84 mm. In contrast, with the screws-position-guided template, the results were 2.38 ± 0.69 mm and -1.30 ± 1.13 mm. Accordingly, the mean difference values of screws were 0.76 ± 0.84 mm and 0.94 ± 0.72 mm. There was no statistical difference between the two groups, and the noninferiority of the control group compared to the test group was also confirmed by the comparative analysis. CONCLUSION It can be concluded that there is a certain deviation between the planned surgical placement and actual one of customized mesh, and using screws-position-guided template is of limited help for its accurate placement. Further research is needed to achieve precise surgical placement of the customized mesh to achieve precise alveolar bone augmentation.
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Affiliation(s)
- Dan Chen
- Key Laboratory of Biomechanics and Mechanobiology, Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, School of Engineering Medicine, Beihang University, Beijing, China
| | - Lingling Zheng
- Key Laboratory of Biomechanics and Mechanobiology, Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, School of Engineering Medicine, Beihang University, Beijing, China
| | - Chao Wang
- Key Laboratory of Biomechanics and Mechanobiology, Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, School of Engineering Medicine, Beihang University, Beijing, China
| | - Yuanding Huang
- Department of implantology, Stomatological Hospital of Chongqing Medical University, Chongqinig, China
| | - Haitao Huang
- Department of Stomatology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Antonio Apicella
- Advanced Materials Laboratory, Polytechnique School of Engineering and Base science, University of Campania, Aversa, Italy
| | - Guiping Hu
- Key Laboratory of Biomechanics and Mechanobiology, Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, School of Engineering Medicine, Beihang University, Beijing, China
| | - Lizhen Wang
- Key Laboratory of Biomechanics and Mechanobiology, Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, School of Engineering Medicine, Beihang University, Beijing, China
| | - Yubo Fan
- Key Laboratory of Biomechanics and Mechanobiology, Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, School of Engineering Medicine, Beihang University, Beijing, China
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Quirynen M, Lahoud P, Teughels W, Cortellini S, Dhondt R, Jacobs R, Temmerman A. Individual "alveolar phenotype" limits dimensions of lateral bone augmentation. J Clin Periodontol 2023; 50:500-510. [PMID: 36574768 DOI: 10.1111/jcpe.13764] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 11/29/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022]
Abstract
AIM Alveolar ridge resorption following tooth extraction often renders a lateral bone augmentation inevitable. Some patients, however, suffer from severe early (during graft healing, Eres ) and/or late (during follow-up, Lres ) graft resorption. We explored the hypothesis that the "individual phenotypic dimensions" may partially explain the degree of such resorptions. MATERIALS AND METHODS Patients who underwent a guided bone regeneration (GBR) procedure were screened for inclusion according to the following criteria: (1) a relatively symmetrical maxillary arch; (2) an intact contra-lateral alveolar bone dimension; (3) the availability of a pre-operative cone-beam CT (CBCT); (4) a CBCT taken immediately after GBR, and (5) at least one CBCT scan ≥6 months after surgery. CBCT scans from different timepoints were registered and imported into the Mimics software (Materialise, Leuven, Belgium). Bone dimensions of the contra-lateral site of the augmentation, representing the "individual phenotypical dimension (IPD) of the alveolar crest", were superimposed on the augmented site and registered accordingly. As such, Eres and Lres could be measured over time, in relation to the IPD (in two dimensions; per millimetre apically from the alveolar crest, in the centre of the GBR), as well as in three dimensions (the entire GBR, 2 mm away from the mesial, distal, and apical border for standardization). RESULTS A total of 17 patients (23 augmented sites) were included. After Eres , the outline of the augmentation was in general located ±1 mm outside the IPD, but ≥1.5 years after GBR, it further moved towards the IPD (85% within 0.5 mm distance). CONCLUSIONS Within the limitations of this study, the results indicate that the dimensions of a lateral bone augmentation are defined by the "individual phenotypic bone boundaries" of the patient.
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Affiliation(s)
- Marc Quirynen
- Department of Oral Health Sciences, KU Leuven and Dentistry (Periodontology), University Hospitals Leuven, Leuven, Belgium
| | - Pierre Lahoud
- Department of Oral Health Sciences, KU Leuven and Dentistry (Periodontology), University Hospitals Leuven, Leuven, Belgium
- Department of Oral and Maxillofacial Surgery and Department of Imaging and Pathology, UZ Leuven, OMFS-IMPATH Research Group, KU Leuven, Leuven, Belgium
| | - Wim Teughels
- Department of Oral Health Sciences, KU Leuven and Dentistry (Periodontology), University Hospitals Leuven, Leuven, Belgium
| | - Simone Cortellini
- Department of Oral Health Sciences, KU Leuven and Dentistry (Periodontology), University Hospitals Leuven, Leuven, Belgium
| | - Rutger Dhondt
- Department of Oral Health Sciences, KU Leuven and Dentistry (Periodontology), University Hospitals Leuven, Leuven, Belgium
| | - Reinhilde Jacobs
- Department of Oral and Maxillofacial Surgery and Department of Imaging and Pathology, UZ Leuven, OMFS-IMPATH Research Group, KU Leuven, Leuven, Belgium
- Department of Dental Medicine, Karolinska Institute, Stockholm, Sweden
| | - Andy Temmerman
- Department of Oral Health Sciences, KU Leuven and Dentistry (Periodontology), University Hospitals Leuven, Leuven, Belgium
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Oguić M, Čandrlić M, Tomas M, Vidaković B, Blašković M, Jerbić Radetić AT, Zoričić Cvek S, Kuiš D, Cvijanović Peloza O. Osteogenic Potential of Autologous Dentin Graft Compared with Bovine Xenograft Mixed with Autologous Bone in the Esthetic Zone: Radiographic, Histologic and Immunohistochemical Evaluation. Int J Mol Sci 2023; 24:ijms24076440. [PMID: 37047413 PMCID: PMC10094989 DOI: 10.3390/ijms24076440] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 03/22/2023] [Accepted: 03/28/2023] [Indexed: 04/14/2023] Open
Abstract
This prospective, randomized, controlled clinical trial reports clinical, radiographic, histologic and immunohistochemical results of autologous dentin graft (ADG) and its comparison with a mixture of bovine xenograft with autologous bone (BX+AB). After tooth extraction in the esthetic zone of maxilla, the alveolar ridge of 20 patients in the test group was augmented with ADG, while 17 patients in the control group received the combination of BX+AB. Cone beam computed tomography (CBCT) was performed before tooth extraction and after 4 months when a total of 22 bone biopsies were harvested and subjected to histological and immunohistochemical analysis. Radiological analysis showed comparable results of bone dimension loss in both groups. Quantitative histologic analysis showed comparable results with no statistically significant differences between the groups. Immunohistochemical staining with TNF-α and BMP-4 antibodies revealed immunopositivity in both groups. A statistically significant difference between the groups was found in the intensity of TNF-α in the area of newly formed bone (p = 0.0003) and around remaining biomaterial particles (p = 0.0027), and in the intensity of BMP-4 in the area around biomaterial particles (p = 0.0001). Overall, ADG showed biocompatibility and achieved successful bone regeneration in the esthetic zone of the maxilla similar to BX+AB.
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Affiliation(s)
- Matko Oguić
- Doctoral School of Biomedicine and Health, Faculty of Medicine, University of Rijeka, 51 000 Rijeka, Croatia
- Dental Clinic Rident, 51 000 Rijeka, Croatia
| | - Marija Čandrlić
- Department of Dental Medicine, Faculty of Dental Medicine and Health Osijek, J.J. Strossmayer University of Osijek, 31 000 Osijek, Croatia
| | - Matej Tomas
- Department of Dental Medicine, Faculty of Dental Medicine and Health Osijek, J.J. Strossmayer University of Osijek, 31 000 Osijek, Croatia
| | - Bruno Vidaković
- Department of Dental Medicine, Faculty of Dental Medicine and Health Osijek, J.J. Strossmayer University of Osijek, 31 000 Osijek, Croatia
| | - Marko Blašković
- Private Practice, 51 000 Rijeka, Croatia
- Department of Oral Surgery, Faculty of Dental Medicine Rijeka, University of Rijeka, 51 000 Rijeka, Croatia
| | | | - Sanja Zoričić Cvek
- Department of Anatomy, Faculty of Medicine, University of Rijeka, 51 000 Rijeka, Croatia
| | - Davor Kuiš
- Department of Dental Medicine, Faculty of Dental Medicine and Health Osijek, J.J. Strossmayer University of Osijek, 31 000 Osijek, Croatia
- Department of Periodontology, Faculty of Dental Medicine Rijeka, University of Rijeka, 51 000 Rijeka, Croatia
- Clinical Hospital Center Rijeka, 51 000 Rijeka, Croatia
| | - Olga Cvijanović Peloza
- Department of Anatomy, Faculty of Medicine, University of Rijeka, 51 000 Rijeka, Croatia
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Jung N, Park J, Park SH, Oh S, Kim S, Cho SW, Kim JE, Moon HS, Park YB. Improving Bone Formation by Guided Bone Regeneration Using a Collagen Membrane with rhBMP-2: A Novel Concept. J Funct Biomater 2023; 14:jfb14030170. [PMID: 36976094 PMCID: PMC10056333 DOI: 10.3390/jfb14030170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 02/10/2023] [Accepted: 03/14/2023] [Indexed: 03/29/2023] Open
Abstract
We examined whether recombinant human bone morphogenetic protein-2 (rhBMP-2) when applied to collagen membranes, would reinforce them during guided bone regeneration. Four critical cranial bone defects were created and treated in 30 New Zealand white rabbits, including a control group, critical defect only; group 1, collagen membrane only; group 2, biphasic calcium phosphate (BCP) only; group 3, collagen membrane + BCP; group 4, collagen membrane with rhBMP-2 (1.0 mg/mL); group 5, collagen membrane with rhBMP-2 (0.5 mg/mL); group 6, collagen membrane with rhBMP-2 (1.0 mg/mL) + BCP; and group 7, collagen membrane with rhBMP-2 (0.5 mg/mL) + BCP. After a 2-, 4-, or 8-week healing period, the animals were sacrificed. The combination of collagen membranes with rhBMP-2 and BCP yielded significantly higher bone formation rates compared to the other groups (control group and groups 1-5 < groups 6 and 7; p < 0.05). A 2-week healing period yielded significantly lower bone formation than that at 4 and 8 weeks (2 < 4 = 8 weeks; p < 0.05). This study proposes a novel GBR concept in which rhBMP-2 is applied to collagen membranes outside instead of inside the grafted area, thereby inducing quantitatively and qualitatively enhanced bone regeneration in critical bone defects.
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Affiliation(s)
- Narae Jung
- Department of Clinical Dentistry, Oral Science Research Center, BK21 FOUR Project, College of Dentistry, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
- Department of Prosthodontics, College of Dentistry, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Jaehan Park
- Department of Prosthodontics, College of Dentistry, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Sang-Hyun Park
- Osong Research Institute, TaeWoong Medical Co., Ltd., 55-7 Osongsaengmyeong 2-ro, Heungdeok-gu, Cheongju 28161, Republic of Korea
| | - Seunghan Oh
- Department of Dental Biomaterials and Institute of Biomaterials & Implant, College of Dentistry, Wonkwang University, 460 Iksandae-ro, Iksan 54538, Republic of Korea
| | - Sungtae Kim
- Department of Periodontology, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Sung-Won Cho
- Division of Anatomy and Developmental Biology, Department of Oral Biology, College of Dentistry, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Jong-Eun Kim
- Department of Prosthodontics, College of Dentistry, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Hong Seok Moon
- Department of Prosthodontics, College of Dentistry, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Young-Bum Park
- Department of Prosthodontics, College of Dentistry, Yonsei University, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
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Nan X, Li L, Wang C, Ma X, Chen T, Huang Y. Application of three-dimensional-printing individualized titanium mesh in alveolar bone defects with different Terheyden classifications: a retrospective case series study. Clin Oral Implants Res 2023. [PMID: 36916464 DOI: 10.1111/clr.14062] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 02/18/2023] [Accepted: 02/28/2023] [Indexed: 03/16/2023]
Abstract
OBJECTIVE To present the results of guided bone regeneration (GBR) with three-dimensional-Printing Individual Titanium Mesh (3D-PITM) applied to alveolar bone defects with different Terheyden classifications and the factors affecting the osteogenic outcome. MATERIAL AND METHODS Fifty-nine patients, presenting with 61 defect sites, were enrolled between 2018 and 2021. GBR+3D-PITM was obtained with simultaneous or second stage implant placement. the complication rate, the success rate of the bone grafting procedure and the survival rate of the implant were documented. Bone gain, thickness of pseudo-periosteum and peri-implant marginal bone loss(MBL) were measured through digital methods by imaging data (CBCT and X-ray). RESULTS Out of 61 sites, 20 were exposed (exposure rate: 32.8%). The width, height, and volume bone gain at P3 (mesh removal) were 5.22 ± 3.19 mm, 5.01 ± 2.83 mm, and 588.91 ± 361.23 mm3 , respectively. From P2 (3D-PITM+GBR) to P3 , changes in bone gain were not statistically different in the different Terheyden classifications, the occurrence of exposure (P < 0.001 for all dimensions) and the different type of pseudo-periosteum (P = 0.030 for width and P = 0.002 for height) were significantly correlated with the reduction of bone gain. Terheyden classification of the defect sites was significantly associated with the occurrence of exposure (P = 0.014) and types of the pseudo-periosteum (P = 0.015). CONCLUSION 3D-PITM can be used in alveolar bone defects with different Terheyden classification, but cases with severe vertical bone defects have a greater chance of the 3D-PITM exposure and the exposure can affect the outcome of bone augmentation.
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Affiliation(s)
- Xiang Nan
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Linzhi Li
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Chao Wang
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China.,Key Laboratory of Biomechanics and Mechanobiology, Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, School of Engineering Medicine, Beihang University, No.37, Xueyuan Road, Beijing 100083, China
| | - Xiaofei Ma
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Tao Chen
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Yuanding Huang
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
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Zhu M, Duan B, Hou K, Mao L, Wang X. A comparative in vitro and in vivo study of porcine- and bovine-derived non-cross-linked collagen membranes. J Biomed Mater Res B Appl Biomater 2023; 111:568-578. [PMID: 36214252 DOI: 10.1002/jbm.b.35174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/12/2022] [Accepted: 09/19/2022] [Indexed: 01/21/2023]
Abstract
The porcine-derived non-cross-linked collagen membrane Bio-gide® (BG) and the bovine-derived non-cross-linked collagen membrane Heal-all® (HA) were compared to better understand their in vitro biophysical characteristics and in vivo degradation patterns as a reference for clinical applications. It was showed that the porosity, specific surface area, pore volume and pore diameter of BG were larger than those of HA (64.5 ± 5.2% vs. 48.6 ± 6.1%; 18.6 ± 2.8 m2 /g vs. 2.3 ± 0.6 m2 /g; 0.114 ± 0.002 cm3 /g vs. 0.003 ± 0.001 cm3 /g; 24.4 ± 3.5 nm vs. 7.3 ± 1.7 nm, respectively); the average swelling ratio of BG was higher than that of HA (412.6 ± 41.2% vs. 270.0 ± 2.7%); the tensile strength of both dry and wet HA was higher than those of BG (18.26 ± 3.27 MPa vs. 4.02 ± 1.35 MPa; 2.24 ± 0.21 MPa vs. 0.16 ± 0.02 MPa, respectively); 73% of HA remained after 72 h in collagenase solution, whereas only 8.2% of BG remained. A subcutaneous rat implantation model revealed that, at 3, 7, 14, 28, and 56 days postmembrane implantation, there were more total inflammatory cells, especially more M1 and M2 polarized macrophages and higher M2/M1 ratio in BG than in HA; in addition, the fibrous capsule around BG was also thicker than that around HA. Moreover, concentrations of dozens of cytokines including interleukin-2(IL-2), IL-7, IL-10 and so forth. in BG were higher than those in HA. It is suggested that BG and HA might be suitable for different clinical applications according to their different characteristics.
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Affiliation(s)
- Mengdi Zhu
- Department of Oral and Maxillofacial Surgery, Capital Medical University School of Stomatology, Beijing, China
| | - Beibei Duan
- Department of Oral and Maxillofacial Surgery, Capital Medical University School of Stomatology, Beijing, China
| | - Kegui Hou
- Department of Oral and Maxillofacial Surgery, Capital Medical University School of Stomatology, Beijing, China
| | - Lisha Mao
- Department of Oral and Maxillofacial Surgery, Capital Medical University School of Stomatology, Beijing, China
| | - Xuejiu Wang
- Department of Oral and Maxillofacial Surgery, Capital Medical University School of Stomatology, Beijing, China
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Liu Y, Zhao Y, Zhu W, Han M, Mi F, Wang B. Comprehensive reparative effects of bacteriostatic poly(L-lactide-co-glycolide)/poly(L-lactide-co-ε-caprolactone) electrospinning membrane on alveolar bone defects in progressive periodontitis. J Biomed Mater Res B Appl Biomater 2023; 111:513-525. [PMID: 36196879 DOI: 10.1002/jbm.b.35168] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 09/06/2022] [Accepted: 09/14/2022] [Indexed: 01/21/2023]
Abstract
Periodontitis is a chronic inflammatory disease that leads to the loss of alveolar bone, among several studies focusing on reconstructing periodontal bone caused by periodontitis, guided bone regeneration (GBR) is a promising approach. In this study a serial clinically applied antibiotics loaded poly(L-lactide-co-glycolide)/poly(L-lactide-co-ε-caprolactone) (PLGA/PLCA) fibrous mesh to prevent and reconstruct defective bone in periodontitis were prepared by electrospinning. Incorporation of antibiotics promoted the hydrophilicity but decreased the crystallinity of PLGA/PLCA membranes. Antibiotics could be sustained released from membranes. Metronidazole, minocycline, and doxycycline incorporated membranes could suppress Porphyromonas gingivalis (P. gingivalis) within 21 days in vitro. Metronidazole and minocycline incorporated membranes decreased 41% and 55.5% colony counts in rat gingival crevicular fluid in vivo. Minocycline-loaded membrane could support the proliferation of MC3T3-E1 cells and maintained 79% viability of human ligament fibroblasts cultured on it. And MC3T3-E1 cells could undergo osteoblastic differentiation when cultured with pure PLGA/PLCA membrane and minocycline incorporated membrane. Then in vivo repairable effects of those antibiotics loaded membranes were evaluated in alveolar bone defected P. gingivalis infected model. The application of minocycline loaded membranes, effectively prevented the bone resorption of periodontitis caused by P. gingivalis. After been treated with minocycline incorporated membrane, volume of defected bone of maintained at about 50% level of control rats. 8 weeks post-operation, newly regenerated bone was observed in the operative alveolar bone of the pure PLGA/PLCA membrane, metronidazole and minocycline incorporated PLGA/PLCA membrane treated groups. Minocycline/PLGA/PLCA electrospinning membrane is a promising GBR material that can be applied to guide regeneration of periodontitis-induced alveolar bone damage.
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Affiliation(s)
- Yiming Liu
- Department of Stomatology, North Sichuan Medical College & Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Yun Zhao
- Department of Stomatology, North Sichuan Medical College & Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Wanchun Zhu
- Department of Stomatology, North Sichuan Medical College & Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Mei Han
- Department of Stomatology, North Sichuan Medical College & Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Fanglin Mi
- Department of Stomatology, North Sichuan Medical College & Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Bing Wang
- Department of Chemistry, School of Pharmacy, North Sichuan Medical College, Nanchong, China
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Shanbhag S, Kampleitner C, Al-Sharabi N, Mohamed-Ahmed S, Apaza Alccayhuaman KA, Heimel P, Tangl S, Beinlich A, Rana N, Sanz M, Kristoffersen EK, Mustafa K, Gruber R. Functionalizing Collagen Membranes with MSC-Conditioned Media Promotes Guided Bone Regeneration in Rat Calvarial Defects. Cells 2023; 12:cells12050767. [PMID: 36899904 PMCID: PMC10001262 DOI: 10.3390/cells12050767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 02/21/2023] [Accepted: 02/24/2023] [Indexed: 03/04/2023] Open
Abstract
Functionalizing biomaterials with conditioned media (CM) from mesenchymal stromal cells (MSC) is a promising strategy for enhancing the outcomes of guided bone regeneration (GBR). This study aimed to evaluate the bone regenerative potential of collagen membranes (MEM) functionalized with CM from human bone marrow MSC (MEM-CM) in critical size rat calvarial defects. MEM-CM prepared via soaking (CM-SOAK) or soaking followed by lyophilization (CM-LYO) were applied to critical size rat calvarial defects. Control treatments included native MEM, MEM with rat MSC (CEL) and no treatment. New bone formation was analyzed via micro-CT (2 and 4 weeks) and histology (4 weeks). Greater radiographic new bone formation occurred at 2 weeks in the CM-LYO group vs. all other groups. After 4 weeks, only the CM-LYO group was superior to the untreated control group, whereas the CM-SOAK, CEL and native MEM groups were similar. Histologically, the regenerated tissues showed a combination of regular new bone and hybrid new bone, which formed within the membrane compartment and was characterized by the incorporation of mineralized MEM fibers. Areas of new bone formation and MEM mineralization were greatest in the CM-LYO group. Proteomic analysis of lyophilized CM revealed the enrichment of several proteins and biological processes related to bone formation. In summary, lyophilized MEM-CM enhanced new bone formation in rat calvarial defects, thus representing a novel 'off-the-shelf' strategy for GBR.
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Affiliation(s)
- Siddharth Shanbhag
- Department of Immunology and Transfusion Medicine, Haukeland University Hospital, 5021 Bergen, Norway
- Center for Translational Oral Research (TOR), Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, 5009 Bergen, Norway
- Correspondence: (S.S.); (R.G.); Tel.: +47-55586059 (S.S.); +43-(0)69910718472 (R.G.)
| | - Carina Kampleitner
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Niyaz Al-Sharabi
- Center for Translational Oral Research (TOR), Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, 5009 Bergen, Norway
| | - Samih Mohamed-Ahmed
- Center for Translational Oral Research (TOR), Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, 5009 Bergen, Norway
| | | | - Patrick Heimel
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Stefan Tangl
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Andreas Beinlich
- Department of Earth Science, Faculty of Mathematics and Natural Sciences, University of Bergen, 5009 Bergen, Norway
| | - Neha Rana
- Center for Translational Oral Research (TOR), Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, 5009 Bergen, Norway
| | - Mariano Sanz
- ETEP Research Group, Faculty of Odontology, University Complutense of Madrid, 28040 Madrid, Spain
| | - Einar K. Kristoffersen
- Department of Immunology and Transfusion Medicine, Haukeland University Hospital, 5021 Bergen, Norway
| | - Kamal Mustafa
- Center for Translational Oral Research (TOR), Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, 5009 Bergen, Norway
| | - Reinhard Gruber
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
- Department of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
- Department of Periodontology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland
- Correspondence: (S.S.); (R.G.); Tel.: +47-55586059 (S.S.); +43-(0)69910718472 (R.G.)
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80
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Chen H, Tan W, Tong T, Shi X, Ma S, Zhu G. A pH-Responsive Asymmetric Microfluidic/Chitosan Device for Drug Release in Infective Bone Defect Treatment. Int J Mol Sci 2023; 24. [PMID: 36902046 DOI: 10.3390/ijms24054616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/12/2023] [Accepted: 02/17/2023] [Indexed: 03/02/2023] Open
Abstract
Bacterial infection is currently considered to be one of the major reasons that leads to the failure of guided bone regeneration (GBR) therapy. Under the normal condition, the pH is neutral, while the microenvironment will become acid at the sites of infection. Here, we present an asymmetric microfluidic/chitosan device that can achieve pH-responsive drug release to treat bacterial infection and promote osteoblast proliferation at the same time. On-demand release of minocycline relies on a pH-sensitive hydrogel actuator, which swells significantly when exposed to the acid pH of an infected region. The PDMAEMA hydrogel had pronounced pH-sensitive properties, and a large volume transition occurred at pH 5 and 6. Over 12 h, the device enabled minocycline solution flowrates of 0.51-1.63 µg/h and 0.44-1.13 µg/h at pH 5 and 6, respectively. The asymmetric microfluidic/chitosan device exhibited excellent capabilities for inhibiting Staphylococcus aureus and Streptococcus mutans growth within 24 h. It had no negative effect on proliferation and morphology of L929 fibroblasts and MC3T3-E1 osteoblasts, which indicates good cytocompatibility. Therefore, such a pH-responsive drug release asymmetric microfluidic/chitosan device could be a promising therapeutic approach in the treatment of infective bone defects.
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81
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Zhang Z, He Q, Zhu J, Lin X, Yang Y, Chen H, Huang X, Xu R, Deng F. Optimizing the combined soft tissue repair and osteogenesis using double surfaces of crosslinked collagen scaffolds. J Biomed Mater Res B Appl Biomater 2023; 111:1271-1285. [PMID: 36779616 DOI: 10.1002/jbm.b.35231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 01/22/2023] [Accepted: 01/30/2023] [Indexed: 02/14/2023]
Abstract
Excessive tissue damage or loss has been solved by guided tissue regeneration and guided bone regeneration theories. However, the unfavorable degradation property of the resorbable collagen scaffold brings a big challenge to support soft tissue stabilization and time-consuming osteogenesis. The combined effect for soft tissue and bone of the collagen scaffold with better degradation pattern has not been clearly proven. This study determined whether the double surfaces of crosslinked collagen scaffolds could optimize the combined soft tissue repair and osteogenesis. In this study, we applied the chemically crosslinking treatment to the commercially available collagen scaffolds. Surface characterization, mechanical property and cell proliferation in vitro were evaluated. Combined bilateral skin and bone defects were established with the smooth surface of scaffold facing the skin defect and the rough surface facing the bone defect on the calvaria of rat. Micro-CT and histological evaluation were applied to determine the scaffold degradation pattern, soft tissue repair and osteogenesis. The crosslinked collagen scaffolds showed comparably favorable surface porosity, structure intactness, superhydrophilicity and mechanical properties. Compared to the native scaffolds, the crosslinked scaffolds could optimize the combined soft tissue repair and osteogenesis by preferably prolonged degradation time. Early pro-angiogenesis facilitated soft tissue repair and osteogenesis by upregulated soft tissue matrix degradation and balanced pro-osteogenesis with limited osteoclast-mediated bone resorption. Taken together, this study offers a promising repair strategy for the combined soft tissue and bone defects. Further, the possible mechanism of controllable scaffold degradation should be conducted.
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Affiliation(s)
- Zhengchuan Zhang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Qifen He
- Department of Stomatology, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Jinhao Zhu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Xiaoxuan Lin
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Yang Yang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Hongcheng Chen
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Xiaoqiong Huang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Ruogu Xu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Feilong Deng
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
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82
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Severi M, Trombelli L, Heitz-Mayfield L, Farina R, Simonelli A. Minimal invasiveness in lateral bone augmentation with simultaneous implant placement: A systematic review. Periodontol 2000 2023; 91:113-125. [PMID: 36752302 DOI: 10.1111/prd.12481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 12/02/2022] [Accepted: 12/22/2022] [Indexed: 02/09/2023]
Abstract
The presence of a peri-implant bone dehiscence (BD) or fenestration (BF) is a common finding after implant placement in a crest with a reduced bucco-lingual bone dimension. The presence of a residual BD is associated with a relevant incidence of peri-implant biological complications over time. Guided bone regeneration (GBR), performed at implant placement, is the most validated treatment to correct a BD. In the present systematic review, the evidence evaluating factors which could reduce the invasiveness of a GBR procedure with respect to patient-reported outcomes, intra- and post- surgical complications, was summarized. Factors included were: technical aspects, regenerative materials for GBR, and peri- and post-operative pharmacological regimens. The available evidence seems to indicate that the use of membrane fixation and flap passivation by means of a double flap incision technique may reduce the incidence of post-surgical complications. When feasible, the coronal advancement of the lingual flap is suggested. The use of a non-cross linked resorbable membrane positively impacts on patient discomfort. The adjunctive use of autogenous bone to a xenograft seems not to improve BD correction, but could increase patient discomfort. Systemic antibiotic administration after a GBR procedure does not seem to be justified in systemically healthy patients.
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Affiliation(s)
- Mattia Severi
- Research Centre for the Study of Periodontal and Peri-implant Diseases, University of Ferrara, Ferrara, Italy.,Operative Unit of Dentistry, Azienda Unità Sanitaria Locale (AUSL), Ferrara, Italy
| | - Leonardo Trombelli
- Research Centre for the Study of Periodontal and Peri-implant Diseases, University of Ferrara, Ferrara, Italy.,Operative Unit of Dentistry, Azienda Unità Sanitaria Locale (AUSL), Ferrara, Italy
| | - Lisa Heitz-Mayfield
- International Research Collaborative - Oral Health and Equity, School of Anatomy, Physiology and Human Biology, The University of Western Australia, Perth, WA, Australia
| | - Roberto Farina
- Research Centre for the Study of Periodontal and Peri-implant Diseases, University of Ferrara, Ferrara, Italy.,Operative Unit of Dentistry, Azienda Unità Sanitaria Locale (AUSL), Ferrara, Italy
| | - Anna Simonelli
- Research Centre for the Study of Periodontal and Peri-implant Diseases, University of Ferrara, Ferrara, Italy.,Operative Unit of Dentistry, Azienda Unità Sanitaria Locale (AUSL), Ferrara, Italy
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83
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Li S, Zhao Y, Tian T, Zhang T, Xie Y, Cai X. A minimally invasive method for titanium mesh fixation with resorbable sutures in guided bone regeneration: A retrospective study. Clin Implant Dent Relat Res 2023; 25:87-98. [PMID: 36271812 DOI: 10.1111/cid.13147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 10/01/2022] [Accepted: 10/04/2022] [Indexed: 11/30/2022]
Abstract
OBJECTIVES Titanium mesh has become a mainstream choice for guided bone regeneration (GBR) owing to its excellent space maintenance. However, the traditional fixation method using titanium screws impacts surgery efficiency and increases patient trauma. We report a novel method of fixing a titanium mesh using resorbable sutures. We assessed the feasibility of resorbable sutures for fixing a titanium mesh and whether it can serve as a stable, universal, and minimally invasive fixation method for a broader application of titanium meshes. METHODS Patients undergoing GBR with a digital titanium mesh fixed using titanium screws (TS group) and resorbable sutures (RS group) were observed at different time points. The stability of the fixation methods was evaluated on parameters such as titanium mesh spatial displacement, bone augmentation, and bone resorption. RESULTS A total of 36 patients were included in this study. The exposure rate of the titanium mesh in the TS group was 16.67%, while no exposure was noted in the RS group. There was no significant difference in the parameters of titanium mesh spatial displacement, bone augmentation, and bone resorption between the two groups (p > 0.05). CONCLUSION The use of resorbable sutures for fixing a titanium mesh can achieve similar results to traditional fixation using titanium screws. Although this new fixation method can improve the efficiency of the surgery and reduce the risk of complications, the long-term clinical effects require further follow-up investigation.
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Affiliation(s)
- Songhang Li
- Department of Implant Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yuxuan Zhao
- Department of Implant Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Taoran Tian
- Department of Implant Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Tianxu Zhang
- Department of Implant Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yu Xie
- Department of Implant Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xiaoxiao Cai
- Department of Implant Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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84
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Sukchan K, Pripatnanont P, Tunthasen R, Meesane J. The efficacy of a semi-resorbable membrane based on silk fibroin-Glycerol on bone regeneration in rabbit calvarial defects compared to a commercial collagen membrane. J Biomater Appl 2023; 37:1205-1217. [PMID: 36044990 DOI: 10.1177/08853282221124287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Silk fibroin-glycerol-based membranes were fabricated and characterized for use as a self-maintaining and non-collapsible semi-resorbable membrane in guided bone regeneration. The study assessed the bone regeneration capacity of silk fibroin-glycerol-based membranes compared to a collagen membrane in 10-mm circular bilateral calvarial defects of 20 male New Zealand white rabbits. The animals were divided into two sets of time frames of 4 and 12 weeks and allocated into four groups (n = 5/group); an empty defect (E), a collagen membrane (Bio-Gide®; BG), a silk fibroin-glycerol-collagen membrane (SGC), and a silk fibroin-glycerol membrane (SG). The bone density (optical density, OD) from the 2D radiographs, tissue reaction from histological sections, new bone volume, and area from micro-CT and the histomorphometry were evaluated. The Mean OD of the E (34.49 ± 14.21%) and BG groups (35.71 ± 9.65%) at 12 weeks were higher than at 4 weeks, but the SGC (39.04 ± 7.94%) and SG (40.96 ± 9.25%) groups were lower at 4 weeks. The new bone volumes at 4 weeks of the SG (24.19 ± 1.35%) and SGC groups (24.19 ± 3.47%) were significantly higher than the BG group (16.93 ± 2.95%) but were not different from the E group (18.39±4.78%). At 12 weeks, the new bone volumes in the SGC (29.09 ± 3.81%), SG (29.11 ± 5.94%), and BG groups (26.26 ± 4.42%) were higher than in the E group (21.63 ± 5.81%) without statistical significance. Histological images in the SGC and SG groups showed slow biodegradation without a foreign body reaction. The new bone area at 4 weeks was lowest in BG (12.95 ± 5.44%), and the others were comparable. At 12 weeks, the new bone area in the E group (23.55±8.69%) was lower than the BG (31.42 ± 6.18%), SG (35.25 ± 13.92%), and SGC groups (36.35 ± 10.23%). Silk fibroin-glycerol-based membranes are semi-resorbable membranes that possess a self-maintaining property, have a barrier function without collapsing, and are successful in facilitating bone regeneration.
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Affiliation(s)
- Kongkiat Sukchan
- Oral and Maxillofacial Surgery Section, 26686Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Prisana Pripatnanont
- Oral and Maxillofacial Surgery Section, 26686Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Rudjit Tunthasen
- Oral and Maxillofacial Surgery Section, 26686Prince of Songkla University, Hat Yai, Songkhla, Thailand.,Department of Oral Surgery, 26686Naresuan University, Phitsanulok, Thailand
| | - Jirut Meesane
- Institute of Biomedical Engineering, 37689Prince of Songkla University, Hat Yai, Songkhla, Thailand
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85
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Qian SJ, Pu YP, Zhang XM, Wu XY, Liu BL, Lai HC, Shi JY. Clinical, radiographic, and esthetic evaluation of immediate implant placement with buccal bone dehiscence in the anterior maxilla: A 1-year prospective case series. Clin Implant Dent Relat Res 2023; 25:3-10. [PMID: 36373737 DOI: 10.1111/cid.13154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 09/28/2022] [Accepted: 11/01/2022] [Indexed: 11/16/2022]
Abstract
OBJECTIVES To evaluate the clinical, radiographic, and esthetic outcomes of immediate implant placement with buccal bone dehiscence in the anterior maxilla. METHODS In this case series, implants were inserted immediately after tooth extraction in sockets with buccal bone dehiscence. Guided bone regeneration (GBR) with a papilla preservation flap and simultaneous connective tissue grafting (CTG) was used. The following outcome variables were measured: mid-facial mucosal recession, probing depth, bleeding on probing, Pink Esthetic Score (PES), marginal bone loss, and thickness of buccal bone plate (TBP). RESULTS 12 patients were recruited. Stable mid-facial mucosal level (-0.03 ± 0.17 mm) and excellent soft-tissue esthetic outcomes (PES, 9.17 ± 0.72) were achieved at 1 year. The TBP at platform level was 2.01 ± 0.31 mm at 1-year follow up with a resorption rate of 28.90% ± 15.14%. CONCLUSIONS Immediate implant placement using GBR performed with a papilla preservation approach and simultaneous CTG is a feasible treatment procedure in compromised extraction sockets in the anterior region. Favorable esthetic outcomes and buccal bone thickness were obtained. Further studies were needed to evaluate the long-term tissue alteration.
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Affiliation(s)
- Shu-Jiao Qian
- Shanghai PerioImplant Innovation Center, Department of Oral and Maxillo-facial Implantology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China.,National Center for Stomatology, Shanghai, China.,National Clinical Research Center for Oral Disease, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Yi-Ping Pu
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China.,National Center for Stomatology, Shanghai, China.,National Clinical Research Center for Oral Disease, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai, China.,Department of Oral Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiao-Meng Zhang
- Shanghai PerioImplant Innovation Center, Department of Oral and Maxillo-facial Implantology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China.,National Center for Stomatology, Shanghai, China.,National Clinical Research Center for Oral Disease, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Xin-Yu Wu
- Shanghai PerioImplant Innovation Center, Department of Oral and Maxillo-facial Implantology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China.,National Center for Stomatology, Shanghai, China.,National Clinical Research Center for Oral Disease, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Bei-Lei Liu
- Shanghai PerioImplant Innovation Center, Department of Oral and Maxillo-facial Implantology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China.,National Center for Stomatology, Shanghai, China.,National Clinical Research Center for Oral Disease, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Hong-Chang Lai
- Shanghai PerioImplant Innovation Center, Department of Oral and Maxillo-facial Implantology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China.,National Center for Stomatology, Shanghai, China.,National Clinical Research Center for Oral Disease, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Jun-Yu Shi
- Shanghai PerioImplant Innovation Center, Department of Oral and Maxillo-facial Implantology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China.,National Center for Stomatology, Shanghai, China.,National Clinical Research Center for Oral Disease, Shanghai, China.,Shanghai Key Laboratory of Stomatology, Shanghai, China
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86
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Sayed ME. An innovative application of pre-medicated collagen sponges with regenerative biomaterials for management of an infected extraction socket: A case report. Niger J Clin Pract 2023; 26:246-249. [PMID: 36876616 DOI: 10.4103/njcp.njcp_266_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
Abstract
Localized infection of the extraction socket can compromise bone quality and quantity within the socket and bone support for the adjacent dentition. These events can preclude immediate rehabilitative interventions, such as implant placement, and increase the technical sensitivity of guided bone regeneration procedures for successful tissue and bone gain. The use of local scaffolds containing effective antimicrobial agents may suppress local infection and facilitate the regenerative process related to the introduced bone graft particles and barrier collagen membrane. In this case report, pre-medicated collagen sponges containing chlorhexidine and metronidazole were used in conjunction with a bone graft and collagen membrane for guided tissue and bone regeneration, which was followed by delayed implant placement with 2 years of follow-up evaluations.
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Affiliation(s)
- M E Sayed
- Department of Prosthetic Dental Sciences, Jazan University College of Dentistry, Jazan, Saudi Arabia
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87
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Song YW, Bienz SP, Benic GI, Cha JK, Hämmerle CHF, Jung UW, Jung RE. Soft-tissue dimensional change following guided bone regeneration on peri-implant defects using soft-type block or particulate bone substitutes: 1-year outcomes of a randomized controlled clinical trial. J Clin Periodontol 2023; 50:147-157. [PMID: 36330670 DOI: 10.1111/jcpe.13738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 09/19/2022] [Accepted: 10/25/2022] [Indexed: 11/06/2022]
Abstract
AIM To compare the peri-implant soft-tissue dimensional changes following guided bone regeneration between particulate (particle group) and collagenated soft-block-type (block group) biphasic calcium phosphate (BCP). MATERIALS AND METHODS This study investigated 35 subjects: 18 in the particle group and 17 in the block group. Cone-beam computed tomography obtained at 6 months post surgery and optical impressions taken periodically (before surgery, 6 months post surgery, and 1 year post surgery) were superimposed. The ridge contour changes over time and the peri-implant mucosal thicknesses were measured diagonally and horizontally, and analysed statistically. RESULTS The increases in diagonal (1.12 ± 0.78 mm) and horizontal (2.79 ± 1.90 mm) ridge contour of the block group were significantly higher than those in the particle group during the first 6 months (p < .05); however, the contour hardly changed thereafter (diagonal: 0.07 ± 0.75 mm; horizontal: -0.34 ± 1.26 mm), resulting in the 1-year contour changes similar between the two groups. Regardless of the type of BCP, the ridge contour increased significantly over 1 year when the dehiscence defect had a contained configuration (p < .05). CONCLUSIONS The increase in soft-tissue dimensions for 1 year was similar between the two groups. The mucosal contour increase was larger when the surgery was conducted in a more contained defect, and this was not influenced by the type of BCP.
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Affiliation(s)
- Young Woo Song
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Stefan P Bienz
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zürich, Switzerland
| | - Goran I Benic
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zürich, Switzerland.,Institute for Research and Education in Dental Medicine, Lugano, Switzerland
| | - Jae-Kook Cha
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Christoph H F Hämmerle
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zürich, Switzerland
| | - Ui-Won Jung
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Ronald E Jung
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zürich, Switzerland
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88
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An HW, Lee J, Park JW. Surface characteristics and in vitro biocompatibility of surface-modified titanium foils as a regenerative barrier membrane for guided bone regeneration. J Biomater Appl 2023; 37:1228-1242. [PMID: 36205350 DOI: 10.1177/08853282221132351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study evaluated surface characteristics and biocompatibility of surface-modified thin titanium (Ti) foils as a regenerative barrier membrane for future application in guided bone regeneration (GBR) surgery to augment atrophic alveolar bone. Anodic oxidation and post-heat treatment were performed to prepare various Ti foil samples. Then, the in vitro soft and hard tissue compatibility of the samples was evaluated by examining the cell responses using primary human gingival fibroblasts (HGFs) and MG63 human osteoblast-like cells. Investigated Ti foil samples showed marked differences in physicochemical surface properties. Additional 400°C heat treatment applied to the anodized Ti surface led to formation of an anatase titanium dioxide structure and well-organized nanoscale protrusions, and significantly increased surface wettability. Anodization and heat treatment enhanced the growth of HGFs and MG63 cells in Ti foil samples. Additional heat treatment for 10 and 30 min further significantly improved the response of HGFs including spreading and proliferation, and upregulated the mRNA expression of cell adhesion- and maturation-related genes as well as the osteoblast differentiation of MG63 cells. Ti foil sample with thin oxide coating obtained by a 30 min heat treatment exhibited poor clinical plasticity as a regenerative barrier membrane, which showed complete coating failure in the bending test. Our results indicate that anatase Ti oxide coating of a specific film thickness with nanoscale surface protrusion morphology and hydrophilic characteristics obtained by anodization and post-heat treatment would be an effective approach as a biocompatible Ti regenerative membrane for inducing better regeneration of both gingival tissue and bone.
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Affiliation(s)
- Hyun-Wook An
- Graduate School, 34986Kyungpook National University, Daegu, Korea.,Megagen Implant R&D Center, Daegu, Korea
| | - Jaesik Lee
- Megagen Implant R&D Center, Daegu, Korea
| | - Jin-Woo Park
- Department of Pediatric Dentistry, 65498Kyungpook National University School of Dentistry, Daegu, Korea
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89
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Zhang JY, Liu K, Liu RX, Xu BH. Safety and Efficacy of Midface Augmentation Using Bio-Oss Bone Powder and Bio-Gide Collagen Membrane in Asians. J Clin Med 2023; 12. [PMID: 36769607 DOI: 10.3390/jcm12030959] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 01/19/2023] [Accepted: 01/22/2023] [Indexed: 01/29/2023] Open
Abstract
(1) Background: Asians tend to have a regressive midface. Midface augmentation is an effective treatment, and various materials have been used as fillers for this purpose. Bio-Oss bone powder has a strong positive effect on promoting new bone regeneration, and has been used in the dental field for over 30 years. However, it has not been used and reported as a filler in midface augmentation. (2) Objective: To evaluate the safety and efficacy of midface augmentation using Bio-Oss bone powder in treating midface retrusion and resulting nasolabial folds, and to develop a predictive model for patient satisfaction. (3) Methods: 85 patients underwent midface augmentation through an intraoral approach with Bio-Oss. Treatment efficacy was assessed by blinded investigators. The data on safety were collected from patient interviews at each follow-up visit. A questionnaire was used for investigating patient satisfaction. The influencing factors of satisfaction were analyzed by univariate and multivariate analysis. A nomogram to predict the risk of dissatisfaction was built based on significant factors with R software. Results: Compared to baseline, there was a significant improvement (p < 0.001) in Wrinkle Severity (4) Rating Scale scores at week 24, with a mean decrease of 0.52 ± 0.57. The aesthetic improvement rate evaluated by the Global Aesthetic Improvement Scale was 92.9%. Four mild treatment-related adverse events were noted. The majority of patients were satisfied overall. A nomogram with good prediction performance was plotted. (5) Conclusions: This new procedure yielded safe and satisfactory aesthetic results. A nomogram with good test performance and discriminative ability was established for predicting patient satisfaction.
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90
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Urban I, Montero E, Sanz-Sánchez I, Palombo D, Monje A, Tommasato G, Chiapasco M. Minimal invasiveness in vertical ridge augmentation. Periodontol 2000 2023; 91:126-144. [PMID: 36700299 DOI: 10.1111/prd.12479] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/11/2022] [Accepted: 05/15/2022] [Indexed: 01/27/2023]
Abstract
Vertical ridge augmentation is one of the most challenging procedures in implant dentistry because of the advanced skills required by the operator and the fact that bone augmentation is aimed outside the bony contour, in an environment of reduced blood supply. What is more, the flap management required to ensure soft tissue closure frequently leads to associated comorbidities in terms of swelling and hematomas. For these reasons, and even if autologous onlay block grafts are still the gold standard, new techniques and biomaterials have favored the development of potentially less invasive approaches. The present work evaluates the most recent strategies in vertical ridge augmentation to reduce invasiveness and complications, including diagnostic/treatment planning considerations, surgical techniques, digital tools (eg, customized titanium meshes/membranes or bone blocks), and future trends in the field of tissue engineering and cell therapy.
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Affiliation(s)
- Istvan Urban
- Department of Periodontics and Oral Medicine, University of Michigan, Ann Arbor, Michigan, USA.,Private Practice, Budapest, Hungary
| | - Eduardo Montero
- ETEP (Etiology and Therapy of Periodontal and Peri-Implant Diseases) Research Group, University Complutense, Madrid, Spain.,Section of Postgraduate Periodontology, University Complutense, Madrid, Spain
| | - Ignacio Sanz-Sánchez
- ETEP (Etiology and Therapy of Periodontal and Peri-Implant Diseases) Research Group, University Complutense, Madrid, Spain.,Section of Postgraduate Periodontology, University Complutense, Madrid, Spain
| | - David Palombo
- Section of Postgraduate Periodontology, University Complutense, Madrid, Spain
| | - Alberto Monje
- Department of Periodontics and Oral Medicine, University of Michigan, Ann Arbor, Michigan, USA.,Department of Periodontology, Universitat Internacional de Catalunya, Barcelona, Spain
| | - Grazia Tommasato
- Unit of Oral Surgery, Department of Biomedical, Surgical, and Dental Sciences, A.O. Santi Paolo & Carlo, Dental Clinic, University of Milan, Milan, Italy
| | - Matteo Chiapasco
- Unit of Oral Surgery, Department of Biomedical, Surgical, and Dental Sciences, A.O. Santi Paolo & Carlo, Dental Clinic, University of Milan, Milan, Italy
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91
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Dong Y, Yao L, Cai L, Jin M, Forouzanfar T, Wu L, Liu J, Wu G. Antimicrobial and Pro-Osteogenic Coaxially Electrospun Magnesium Oxide Nanoparticles-Polycaprolactone /Parathyroid Hormone-Polycaprolactone Composite Barrier Membrane for Guided Bone Regeneration. Int J Nanomedicine 2023; 18:369-383. [PMID: 36700148 PMCID: PMC9869899 DOI: 10.2147/ijn.s395026] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 12/24/2022] [Indexed: 01/21/2023] Open
Abstract
Introduction An antibacterial and pro-osteogenic coaxially electrospun nanofiber guided bone regeneration (GBR) membrane was fabricated to satisfy the complicated and phased requirements of GBR process. Methods In this study, we synthesize dual-functional coaxially electrospun nanofiber GBR membranes by encapsulating parathyroid hormone (PTH) in the core layer and magnesium oxide nanoparticles (MgONPs) in the shell layer (MgONPs-PCL/PTH-PCL). Herein, the physicochemical characterization of MgONPs-PCL/PTH-PCL, the release rates of MgONPs and PTH, and antibacterial efficiency of the new membrane were evaluated. Furthermore, the pro-osteogenicity of the membranes was assessed both in-vitro and in-vivo. Results We successfully fabricated a coaxially electrospun nanofiber MgONPs-PCL/PTH-PCL membrane with the majority of nanofibers (>65%) ranged from 0.40~0.60μm in diameter. MgONPs-PCL/PTH-PCL showed outstanding antibacterial potential against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) through the release of MgONPs. We also discovered that the incorporation of MgONPs significantly prolonged the release of PTH. Furthermore, both the in-vivo and in-vitro studies demonstrated that high dosage of PTH promoted pro-osteogenicity of the membrane to improve bone regeneration efficacy with the presence of MgONPs. Conclusion The new composite membrane is a promising approach to enhance bone regeneration in periodontitis or peri-implantitis patients with large-volume bone defects.
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Affiliation(s)
- Yiwen Dong
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, People’s Republic of China,Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, Amsterdam, the Netherlands,Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, the Netherlands
| | - Litao Yao
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, Amsterdam, the Netherlands,Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, the Netherlands,Department of Dentistry, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, People’s Republic of China,Correspondence: Litao Yao, Department of Dentistry, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China, Zhejiang, Email
| | - Lei Cai
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Mi Jin
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, Amsterdam, the Netherlands,Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, the Netherlands
| | - Lianjun Wu
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Jinsong Liu
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, People’s Republic of China,Jinsong Liu, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, People’s Republic of China, Email
| | - Gang Wu
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, Amsterdam, the Netherlands,Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, the Netherlands
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92
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Alam MK, Srivastava KC, Khamis MF, Husein A. Editorial: Recent advancements in the dental biomaterials applied in various diagnostic, restorative, regenerative, and therapeutic procedures. Front Bioeng Biotechnol 2023; 10:1116208. [PMID: 36698643 PMCID: PMC9868290 DOI: 10.3389/fbioe.2022.1116208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 12/12/2022] [Indexed: 01/11/2023] Open
Affiliation(s)
- Mohammad Khursheed Alam
- College of Dentistry, Jouf University, Sakaka, Saudi Arabia,*Correspondence: Mohammad Khursheed Alam,
| | | | - Mohd Fadhli Khamis
- School of Dental Sciences, Universiti Sains Malaysia, Kota Bharu, Kelantan, Malaysia
| | - Adam Husein
- School of Dental Sciences, Universiti Sains Malaysia, Kota Bharu, Kelantan, Malaysia,College of Dental Medicine, University of Sharjah, Sharjah, United Arab Emirates
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93
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Zhang G, Miao X, Lin H, Qi B, Wu Y. A tooth-supported titanium mesh bending and positioning module for alveolar bone augmentation and improving accuracy. J ESTHET RESTOR DENT 2023; 35:586-595. [PMID: 36621950 DOI: 10.1111/jerd.13012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 12/14/2022] [Accepted: 12/25/2022] [Indexed: 01/10/2023]
Abstract
OBJECTIVE Guided bone regeneration with titanium mesh is a commonly used bone augmentation technique. However, deformation and sliding may occur during the installation of titanium mesh, which may lead to poor accuracy of bone augmentation. This article presented three cases, which describe a tooth-supported titanium mesh bending and positioning module aiming to improve the precision of bone augmentation. CLINICAL CONSIDERATIONS After designing the ideal bone increment volume digitally, print out the difference bone module between the ideal and existing bone mass and one or two wings. The wings are supported by the adjacent teeth to show the ideal bone mass in the patients' mouth. Finally, the titanium mesh is bent and installed in the ideal position by the module. CONCLUSIONS A favorable outcome has been preliminarily confirmed in these cases, the average vertical bone gain was 4.16 mm and the average horizontal gain was 7.48 mm after 6 months. Using the module in the treatment of patients with bone augmentation can effectively improve the accuracy, the maximum deviation was 1.5 mm and the mean was 0.6 mm. CLINICAL SIGNIFICANCE This study improves the bone augmentation technology with titanium mesh. The titanium mesh is fixed in the ideal position, which facilitates subsequent implantation and denture repair.
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Affiliation(s)
- Gaowei Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China College of Stomatology, Sichuan University, Chengdu, China.,Department of Head and Neck Oncology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xinhai Miao
- Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hongkai Lin
- Outpatient Department, Lode Dental Clinic, Xiamen, China
| | - Bo Qi
- Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yingying Wu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China College of Stomatology, Sichuan University, Chengdu, China.,Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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94
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Durrani F, Singh P, Pandey A, Tripathi KP, Vishnu JP, Imran F, Taslim A. Tent screws: Predictable guided bone regeneration. J Indian Soc Periodontol 2023; 27:104-112. [PMID: 36873966 PMCID: PMC9979812 DOI: 10.4103/jisp.jisp_728_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 05/27/2022] [Accepted: 07/01/2022] [Indexed: 03/07/2023] Open
Abstract
Bone regeneration of large maxillary and mandibular alveolar ridge defects is clinically challenging. Various techniques have been described for the reconstruction of these deficiencies before implant placement. The tent screw-pole technique is one of the effective methods available for clinicians to perform the predictable functional and esthetic reconstruction. The aim of this prospective report was to evaluate clinical and three-dimensional radiographic analyses of two patients treated with xenograft and particulate autogenous bone using tenting screws for regeneration of compromised partial edentulous ridges.
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Affiliation(s)
- Farhan Durrani
- Department of Periodontics, Faculty of Dental Science, Institute of Medical Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Preeti Singh
- Department of Periodontics, Faculty of Dental Science, Institute of Medical Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Aishwarya Pandey
- Department of Periodontics, Faculty of Dental Science, Institute of Medical Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Kaushal Pati Tripathi
- Department of Periodontics, Faculty of Dental Science, Institute of Medical Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - J. P. Vishnu
- Department of Periodontics, Faculty of Dental Science, Institute of Medical Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Fouzia Imran
- Department of Periodontics, Faculty of Dental Science, Institute of Medical Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Aabida Taslim
- Department of Periodontics, Faculty of Dental Science, Institute of Medical Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
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95
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Ordóñez-Chávez GDC, Rodríguez-Fuentes N, Peñaloza-Cuevas R, Cervantes-Uc JM, Alcántara-Quintana LE, Maya-García IA, Herrera-Valencia VA, Mendiburu-Zavala CE. In vitro evaluation of crosslinked bovine pericardium as potential scaffold for the oral cavity. Biomed Mater Eng 2023; 34:561-575. [PMID: 37545206 PMCID: PMC10657658 DOI: 10.3233/bme-230027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 07/27/2023] [Indexed: 08/08/2023]
Abstract
BACKGROUND Bovine pericardium (BP) is a scaffold widely used in soft tissues regeneration; however, its calcification in contact with glutaraldehyde, represent an opportunity for its application in hard tissues, such as bone in the oral cavity. OBJECTIVE To develop and to characterize decellularized and glutaraldehyde-crosslinked bovine pericardium (GC-BP) as a potential scaffold for guided bone regeneration GBR. METHODS BP samples from healthy animals of the bovine zebu breed were decellularized and crosslinked by digestion with detergents and glutaraldehyde respectively. The resulting cell-free scaffold was physical, chemical, mechanical, and biologically characterized thought hematoxylin and eosin staining, DNA quantification, scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), uniaxial tensile test, cell viability and live and dead assay in cultures of dental pulp stem cells (DPSCs). RESULTS The decellularization and crosslinking of BP appeared to induce conformational changes of the CLG molecules, which led to lower mechanical properties at the GC-BP scaffold, at the same time that promoted cell adhesion and viability of DPSCs. CONCLUSION This study suggests that the decellularized and GC-BP is a scaffold with the potential to be used promoting DPSCs recruitment, which has a great impact on the dental area.
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Affiliation(s)
| | - Nayeli Rodríguez-Fuentes
- CONACYT-Centro de Investigación Científica de Yucatán, Yucatan, Mexico
- Centro de Investigación Científica de Yucatán, Yucatan, Mexico
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96
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Chen X, Wang H, Wang Y, Shi Y, Wang Z. Enhanced osteogenesis by addition of cancellous bone chips at xenogenic bone augmentation: In vitro and in vivo experiments. Clin Oral Implants Res 2023; 34:42-55. [PMID: 36310529 DOI: 10.1111/clr.14017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 10/09/2022] [Accepted: 10/13/2022] [Indexed: 01/11/2023]
Abstract
OBJECTIVES To investigate and compare the influence of deproteinized bovine bone mineral (DBBM) combined with autologous cortical (CorBC) or cancellous bone chips (CanBC) as bone grafts on guided bone regeneration (GBR) in vivo and in vitro. MATERIALS AND METHODS Defects were created in the mandibular buccal alveolar ridges in dogs and randomly filled with 3 groups of bone grafts: DBBM, DBBM + CorBC, or DBBM + CanBC. Osteogenesis was evaluated by sequential fluorescent labeling and histological analysis. Moreover, rat bilateral calvaria defects were randomly grafted with DBBM, DBBM + CorBC, or DBBM + CanBC. A blank group was included as control. Defect healing was assessed by histological staining, micro-CT, and quantitative polymerase chain reaction. In vitro migration, proliferation, and osteogenic differentiation assays were performed by stimulating rat bone marrow mesenchymal stem cells (rBMSCs) with cortical (CorBCM) or cancellous bone conditioned medium (CanBCM) to unveil the cellular mechanism. RESULTS In the canine model, the augmented sites of DBBM + CanBC exhibited higher mineralized tissue proportion than the other two groups (DBBM: 0.61 ± 0.03 versus DBBM + CorBC: 0.69 ± 0.07 versus DBBM + CanBC: 0.86 ± 0.06; p < .05). In the rat model, the BV/TV value of DBBM + CanBC (0.51 ± 0.01) was higher than those of DBBM + CorBC (0.41 ± 0.02), DBBM (0.31 ± 0.01), and Control (0.10 ± 0.01; p < .01). Further radiological, histological and transcriptional results showed similar trends. In vitro experiments revealed that CorBCM and especially CanBCM could enhance rBMSCs migration, proliferation, and osteogenic differentiation. CONCLUSION In vivo and in vitro experiments verified favorable synergistic effect of mixing autologous bone chips with DBBM on osteogenesis. Furthermore, CanBC presented more powerful osteogenic effect than CorBC.
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Affiliation(s)
- Xiaofan Chen
- Department of Oral Implantology & Department of Oral and Maxillofacial Surgery, Stomatological Hospital and Dental School of Tongji University, Shanghai, China.,Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - Haicheng Wang
- Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - Yuning Wang
- Department of Oral Implantology & Department of Oral and Maxillofacial Surgery, Stomatological Hospital and Dental School of Tongji University, Shanghai, China.,Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - Ying Shi
- Department of Oral Implantology & Department of Oral and Maxillofacial Surgery, Stomatological Hospital and Dental School of Tongji University, Shanghai, China.,Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - Zuolin Wang
- Department of Oral Implantology & Department of Oral and Maxillofacial Surgery, Stomatological Hospital and Dental School of Tongji University, Shanghai, China.,Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
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97
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Zuercher AN, Mancini L, Naenni N, Thoma DS, Strauss FJ, Jung RE. The L-shape technique in guided bone regeneration with simultaneous implant placement in the esthetic zone: A step-by-step protocol and a 2-14 year retrospective study. J ESTHET RESTOR DENT 2023; 35:197-205. [PMID: 36165402 DOI: 10.1111/jerd.12965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 09/07/2022] [Accepted: 09/08/2022] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To describe the methodology of the "L-shape" technique in guided bone regeneration (GBR) with simultaneous implant placement and report on the clinical, esthetic, and patient satisfaction outcomes up to 14 years of follow-up. MATERIAL AND METHODS Fourteen patients treated with the "L-shape" technique were included in this retrospective study. The L-shape technique was performed by trimming and placing a soft-type bone block made of deproteinized bovine bone mineral with 10% collagen at the buccal-occlusal aspect of the dental implant. The remaining gaps were filled with deproteinized bovine bone mineral granules and the augmented area was covered with a collagen membrane. The following parameters were recorded: probing depth (PD), bleeding on probing (BOP), plaque index (PI), keratinized tissue width (KT) and marginal bone level (MBL). Esthetic outcomes were assessed according to the pink esthetic score (PES) and the white esthetic score (WES). Patient satisfaction was evaluated by means of a numerical rating scale (0-10). The stability of each augmented site was assessed by measuring the volumetric changes between baseline (crown delivery) and the respective follow-up. RESULTS A total of 13 maxillary incisors and one maxillary canine in 14 patients were included. The mean follow-up period was 7.7 ± 3.8 years. PES values amounted to 10.7 ± 3.3 and WES to 8.8 ± 1.4. Patient satisfaction reached 9.4 ± 0.8. Mean PD at implant sites were 2.7 ± 0.7 mm while BOP amounted to 15.0 ± 0.2% and Pl to 5.0 ± 0.0%. Volumetric analyses revealed minimal changes at the augmented sites irrespective of the region of interest. Radiographic MBL remained relatively stable. CONCLUSIONS Within the limitation of the present study the L-shape augmentation procedure seems to be a reliable technique when performing GBR with simultaneous implant placement in the esthetic zone. Outcomes encompassed stable clinical and esthetic results accompanied by high levels of patient satisfaction. Future randomized controlled trials are warranted to confirm possible benefits of the L-shape technique over traditional approaches. CLINICAL SIGNIFICANCE The L-shape appears to be a simple yet promising technique in GBR with simultaneous implant placement that can easily be translated into clinical practice.
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Affiliation(s)
- Anina-Nives Zuercher
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland.,Centre for Oral Clinical Research, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Leonardo Mancini
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland.,Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Nadja Naenni
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Daniel-Stefan Thoma
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Franz-Josef Strauss
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland.,Department of Conservative Dentistry, Faculty of Dentistry, University of Chile, Santiago, Chile
| | - Ronald-Ernst Jung
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
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98
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Antunovic F, Tolosa F, Klein C, Ocaranza R. Polycaprolactone-based scaffolds for guided tissue regeneration in periodontal therapy: A systematic review. J Appl Biomater Funct Mater 2023; 21:22808000231211416. [PMID: 37978859 DOI: 10.1177/22808000231211416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023] Open
Abstract
BACKGROUND Polycaprolactone (PCL) is a highly recognized synthetic polymer for its biocompatibility, ease of fabrication and mechanical strength in bone tissue engineering. Its applications have extended broadly, including regeneration of oral and maxillofacial lost tissues. Its usefulness has brought attention of researchers to regenerate periodontal lost tissues, including alveolar bone, periodontal ligament and cementum. The aim of this systematic review was to obtain an updated analysis of the contribution of PCL-based scaffolds in the alveolar bone regeneration process. METHODS This review adheres to the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines for systematic reviews. A computerized search of the PubMed, EBSCO, Scielo and Web of Science databases was performed, restricting literature search to published studies in English or Spanish between January 2002 and March 2023. Database search returned 248 studies which were screened based on title, author names and publication dates. RESULTS Data from 17 studies were reviewed and tabulated. All studies combined PCL with other biomaterials (such as Alginate, hydroxyapatite, bioactive glass, poly (lactic-co-glycolic acid)), growth factors (BMP-2, rhCEMP1), and/or mesenchymal stromal cells (adipose-derived, bone marrow, periodontal ligament or gingiva mesenchymal stromal cells). PCL scaffolds showed higher cell viability and osteoinductive potential when combined with bioactive agents. Complementary, its degradation rates were affected by the addition or exposure to specific substances, such as: Dopamine, Cerium Oxide, PLGA and hydrogen peroxide. CONCLUSIONS PCL is an effective biomaterial for alveolar bone regeneration in periodontally affected teeth. It could be part of a new generation of biomaterials with improved regenerative potential.
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Affiliation(s)
- Florencia Antunovic
- Escuela de Odontología, Facultad de Medicina - Clínica Alemana de Santiago Universidad del Desarrollo, Santiago de Chile, Chile
| | - Felipe Tolosa
- Escuela de Odontología, Facultad de Medicina - Clínica Alemana de Santiago Universidad del Desarrollo, Santiago de Chile, Chile
| | - Catherine Klein
- Especialidad de Periodoncia, Escuela de Odontología, Facultad de Medicina - Clínica Alemana de Santiago Universidad del Desarrollo, Santiago de Chile, Chile
| | - René Ocaranza
- Especialidad de Periodoncia, Escuela de Odontología, Facultad de Medicina - Clínica Alemana de Santiago Universidad del Desarrollo, Santiago de Chile, Chile
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Tai A, Landao-Bassonga E, Chen Z, Tran M, Allan B, Ruan R, Calder D, Goonewardene M, Ngo H, Zheng MH. Systematic evaluation of three porcine-derived collagen membranes for guided bone regeneration. Biomater Transl 2023; 4:41-50. [PMID: 37206304 PMCID: PMC10189808 DOI: 10.12336/biomatertransl.2023.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 02/22/2023] [Accepted: 03/02/2023] [Indexed: 05/21/2023]
Abstract
Guided bone regeneration is one of the most common surgical treatment modalities performed when an additional alveolar bone is required to stabilize dental implants in partially and fully edentulous patients. The addition of a barrier membrane prevents non-osteogenic tissue invasion into the bone cavity, which is key to the success of guided bone regeneration. Barrier membranes can be broadly classified as non-resorbable or resorbable. In contrast to non-resorbable membranes, resorbable barrier membranes do not require a second surgical procedure for membrane removal. Commercially available resorbable barrier membranes are either synthetically manufactured or derived from xenogeneic collagen. Although collagen barrier membranes have become increasingly popular amongst clinicians, largely due to their superior handling qualities compared to other commercially available barrier membranes, there have been no studies to date that have compared commercially available porcine-derived collagen membranes with respect to surface topography, collagen fibril structure, physical barrier property, and immunogenic composition. This study evaluated three commercially available non-crosslinked porcine-derived collagen membranes (Striate+TM, Bio-Gide® and CreosTM Xenoprotect). Scanning electron microscopy revealed similar collagen fibril distribution on both the rough and smooth sides of the membranes as well as the similar diameters of collagen fibrils. However, D-periodicity of the fibrillar collagen is significantly different among the membranes, with Striate+TM membrane having the closest D-periodicity to native collagen I. This suggests that there is less deformation of collagen during manufacturing process. All collagen membranes showed superior barrier property evidenced by blocking 0.2-16.4 μm beads passing through the membranes. To examine the immunogenic agents in these membranes, we examined the membranes for the presence of DNA and alpha-gal by immunohistochemistry. No alpha-gal or DNA was detected in any membranes. However, using a more sensitive detection method (real-time polymerase chain reaction), a relatively strong DNA signal was detected in Bio-Gide® membrane, but not Striate+TM and CreosTM Xenoprotect membranes. Our study concluded that these membranes are similar but not identical, probably due to the different ages and sources of porcine tissues, as well as different manufacturing processes. We recommend further studies to understand the clinical implications of these findings.
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Affiliation(s)
- Andrew Tai
- Centre for Orthopaedic Research, Faculty of Health and Medical Sciences, The University of Western Australia, Nedlands, Western Australia, Australia
- Perron Institute for Neurological and Translational Science, Nedlands, Western Australia, Australia
| | - Euphemie Landao-Bassonga
- Centre for Orthopaedic Research, Faculty of Health and Medical Sciences, The University of Western Australia, Nedlands, Western Australia, Australia
- Perron Institute for Neurological and Translational Science, Nedlands, Western Australia, Australia
| | - Ziming Chen
- Centre for Orthopaedic Research, Faculty of Health and Medical Sciences, The University of Western Australia, Nedlands, Western Australia, Australia
| | - Minh Tran
- UWA Dental School, The University of Western Australia, Nedlands, Western Australia, Australia
| | - Brent Allan
- Centre for Orthopaedic Research, Faculty of Health and Medical Sciences, The University of Western Australia, Nedlands, Western Australia, Australia
- UWA Dental School, The University of Western Australia, Nedlands, Western Australia, Australia
- Oral and Maxillofacial Department, St John of God Subiaco Hospital, Subiaco, Western Australia, Australia
| | - Rui Ruan
- Centre for Orthopaedic Research, Faculty of Health and Medical Sciences, The University of Western Australia, Nedlands, Western Australia, Australia
| | - Dax Calder
- UWA Dental School, The University of Western Australia, Nedlands, Western Australia, Australia
| | - Mithran Goonewardene
- UWA Dental School, The University of Western Australia, Nedlands, Western Australia, Australia
| | - Hien Ngo
- UWA Dental School, The University of Western Australia, Nedlands, Western Australia, Australia
| | - Ming Hao Zheng
- Centre for Orthopaedic Research, Faculty of Health and Medical Sciences, The University of Western Australia, Nedlands, Western Australia, Australia
- Perron Institute for Neurological and Translational Science, Nedlands, Western Australia, Australia
- Corresponding authors: Ming Hao Zheng,
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100
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Fu L, Du L, Qi J, Wang L, Zhou Y. Immediate Implant Placement in Posterior Sockets With Periapical Infection and Bone Defects: Three Case Reports. J ORAL IMPLANTOL 2022; 48:500-506. [PMID: 36796054 DOI: 10.1563/aaid-joi-d-22-00105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 10/17/2022] [Indexed: 02/18/2023]
Abstract
Immediate implant placement is considered a well-accepted procedure due to its advantages and predictable survival rates. However, data on immediate implantation in posterior sockets with infection and bone defects are limited. The purpose of this clinical report was to describe 3 cases of hopeless posterior teeth with periapical infection and relatively large destruction that were successfully treated with immediate implant placement. The mean follow-up time was 22 months. On the basis of correct clinical decision and treatment procedure, immediate implant placement may be a reliable treatment option for compromised posterior sockets.
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Affiliation(s)
- Li Fu
- Department of Dental Implantology, Hospital of Stomatology, Jilin University, Changchun, China
| | - Liuyi Du
- School of Stomatology, Jilin University, Changchun, China
| | - Junnan Qi
- School of Stomatology, Jilin University, Changchun, China
| | - Lin Wang
- Department of Dental Implantology, Hospital of Stomatology, Jilin University, Changchun, China
| | - Yanmin Zhou
- Department of Dental Implantology, Hospital of Stomatology, Jilin University, Changchun, China
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