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Sivolella S, Brunello G, Nika E, Badocco D, Pastore P, Carturan SM, Bernardo E, Elsayed H, Biasetto L, Brun P. In vitro evaluation of granules obtained from 3D sphene scaffolds and bovine bone grafts: chemical and biological assays. J Mater Chem B 2023; 11:8775-8787. [PMID: 37665632 DOI: 10.1039/d3tb00499f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
Sphene is an innovative bone graft material. The aim of this study was to investigate and compare the physicochemical and biological properties of Bio-Oss® (BO) and in-lab synthesized and processed sphene granules. BO granules of 1000-2000 μm (BO-L), 250-1000 μm (BO-S) and 100-200 μm (BO-p) for derived granules, and corresponding groups of sphene granules obtained from 3D printed blocks (SB-L, SB-S, SB-p) and foams (SF-L, SF-S and SF-p) were investigated. The following analyses were conducted: morphological analysis, specific surface area and porosity, inductively coupled plasma mass spectrometry (ICP-MS), cytotoxicity assay, Alizarin staining, bone-related gene expression, osteoblast migration and proliferation assays. All pulverized granules exhibited a similar morphology and SF-S resembled natural bone. Sphene-derived granules showed absence of micro- and mesopores and a low specific surface area. ICP-MS revealed a tendency for absorption of Ca and P for all BO samples, while sphene granules demonstrated a release of Ca. No cellular cytotoxicity was detected and osteoblastic phenotype in primary cells was observed, with significantly increased values for SF-L, SF-S, BO-L and BO-p. Further investigations are needed before clinical use can be considered.
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Affiliation(s)
- Stefano Sivolella
- Department of Neuroscience, Dentistry Section, University of Padova, Via Giustiniani 2, 35128 Padova, Italy.
| | - Giulia Brunello
- Department of Neuroscience, Dentistry Section, University of Padova, Via Giustiniani 2, 35128 Padova, Italy.
- Department of Oral Surgery, Universitätsklinikum Düsseldorf, Moorenstr. 5, 40225 Düsseldorf, Germany
| | - Ervin Nika
- Department of Neuroscience, Dentistry Section, University of Padova, Via Giustiniani 2, 35128 Padova, Italy.
| | - Denis Badocco
- Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, 35131 Padova, Italy.
| | - Paolo Pastore
- Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, 35131 Padova, Italy.
| | - Sara M Carturan
- INFN-Laboratori Nazionali di Legnaro, Viale dell'Università 2, 35020, Legnaro, PD, Italy.
- Dipartimento di Fisica e Astronomia, Università di Padova, Via Marzolo 8, 5131, Padua, Italy
| | - Enrico Bernardo
- Department of Industrial Engineering, University of Padova, Via F. Marzolo 9, 35131 Padova, Italy.
| | - Hamada Elsayed
- Department of Industrial Engineering, University of Padova, Via F. Marzolo 9, 35131 Padova, Italy.
- Refractories, Ceramics and Building Materials Department, National Research Centre, El Buhouth Str., Cairo 12622, Egypt
| | - Lisa Biasetto
- Department of Management and Engineering, University of Padova, Stradella San Nicola 3, 36100 Vicenza, Italy.
| | - Paola Brun
- Department of Molecular Medicine, Section of Microbiology, University of Padova, via A. Gabelli, 63, 35121 Padova, Italy.
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Calvo-Guirado JL, Cabo-Pastor MB, Martínez-Martínez F, Garcés-Villalá MÁ, de Carlos-Villafranca F, García-Carrillo N, Fernández-Domínguez M. The Use of Human Sterilized Crushed Tooth Particles Compared with BTCP Biomaterial and Empty Defects in Bone Formation inside Critical Rabbit Calvaria Sites. Bioengineering (Basel) 2023; 10:638. [PMID: 37370569 DOI: 10.3390/bioengineering10060638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 05/12/2023] [Accepted: 05/22/2023] [Indexed: 06/29/2023] Open
Abstract
This study aimed to assess the bone regeneration of critical-size defects in rabbit calvaria filled with freshly crushed extracted teeth, comparing them with BTCP biomaterial and empty sites. Materials and methods: Twenty-one female New Zealand rabbits were used in this study. Two critical-size defects 6 mm in size were created in the skull bone, each with a 3 mm separation between them. Three experimental groups were evaluated: Group A (human sterilized crushed teeth granules alone), Group B (Bioner Bone, Bioner Sitemas Implantológicos), and Group C (unfilled defects). The animals were sacrificed at 4 and 8 weeks. Evaluation of the samples involved histological and histomorphometric analyses with radiographic evaluation. The histological evaluation showed a higher volume reduction in Group A compared with Group B (p < 0.05) and Control. Group A showed the highest values for cortical closure and bone formation around the particles, followed by Group B and Group C (p < 0.05). Within the limitations of this animal study, we can conclude that the use of human tooth particles leads to increased bone formation and reduced connective tissue in critical-size defects in rabbit calvaria when compared to BTCP biomaterial. The calvarial model is a robust base for the evaluation of different biomaterials.
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Affiliation(s)
| | | | - Francisco Martínez-Martínez
- Department of Orthopaedic Surgery and Traumatology, Hospital Clínico Universitario Virgen de la Arrixaca, 30120 Murcia, Spain
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Tomas M, Karl M, Čandrlić M, Matijević M, Juzbašić M, Peloza OC, Radetić ATJ, Kuiš D, Vidaković B, Ivanišević Z, Kačarević ŽP. A Histologic, Histomorphometric, and Immunohistochemical Evaluation of Anorganic Bovine Bone and Injectable Biphasic Calcium Phosphate in Humans: A Randomized Clinical Trial. Int J Mol Sci 2023; 24:ijms24065539. [PMID: 36982613 PMCID: PMC10056509 DOI: 10.3390/ijms24065539] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/08/2023] [Accepted: 03/09/2023] [Indexed: 03/15/2023] Open
Abstract
Following trauma, chronic periapical process, or tooth extraction, a large loss of bone volume is noticed during the healing process. To facilitate the placement of dental implants, various surgical procedures are used for an optimal alveolar ridge profile, while maintaining adequate bone dimensions. The main aim of this study was to determine the healing ability (histologically and immunohistologically) of alveolar bone defects during augmentation with two different biomaterials: injectable biphasic calcium phosphate (BCP) and anorganic bovine bone (ABB). Thirty-eight subjects were randomly divided into two groups. The first group received the tested bone substitute biomaterial (BSB), i.e., BCP (maxresorb inject®), and the second group received an alternative to the gold standard, i.e., ABB (Bio-Oss®). The histopathological, histomorphometric, and immunohistochemical analyses gave comparable results for these bone substitute materials in terms of newly formed bone: (BCP: 39.91 ± 8.49%, ABB: 41.73 ± 13.99%), residual biomaterial (BCP: 28.61 ± 11.38%, ABB: 31.72 ± 15.52%), and soft tissue (BCP: 31.49 ± 11.09%, ABB: 26.54 ± 7.25%), with no significant difference found between the groups (p < 0.05, t-test), proving that BCP is equally suitable and successful for alveolar bone regeneration.
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Affiliation(s)
- Matej Tomas
- Department of Dental Medicine, Faculty of Dental Medicine and Health Osijek, J. J. Strossmayer University of Osijek, 31 000 Osijek, Croatia
- Interdisciplinary University Study of Molecular Biosciences, J. J. Strossmayer University of Osijek, 31 000 Osijek, Croatia
| | - Matej Karl
- Department of Dental Medicine, Faculty of Dental Medicine and Health Osijek, J. J. Strossmayer University of Osijek, 31 000 Osijek, Croatia
- Faculty of Medicine Osijek, J. J. Strossmayer University of Osijek, 31 000 Osijek, Croatia
| | - Marija Čandrlić
- Department of Dental Medicine, Faculty of Dental Medicine and Health Osijek, J. J. Strossmayer University of Osijek, 31 000 Osijek, Croatia
- Faculty of Medicine Osijek, J. J. Strossmayer University of Osijek, 31 000 Osijek, Croatia
| | - Marko Matijević
- Interdisciplinary University Study of Molecular Biosciences, J. J. Strossmayer University of Osijek, 31 000 Osijek, Croatia
- Community Healthcare Center of Osijek-Baranja County, 31 000 Osijek, Croatia
| | - Martina Juzbašić
- Department of Dental Medicine, Faculty of Dental Medicine and Health Osijek, J. J. Strossmayer University of Osijek, 31 000 Osijek, Croatia
- Interdisciplinary University Study of Molecular Biosciences, J. J. Strossmayer University of Osijek, 31 000 Osijek, Croatia
| | - Olga Cvijanović Peloza
- 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, Univeristy of Rijeka, 51 000 Rijeka, Croatia
- Clinical Hospital Center Rijeka, 51 000 Rijeka, Croatia
| | - Bruno Vidaković
- Department of Dental Medicine, Faculty of Dental Medicine and Health Osijek, J. J. Strossmayer University of Osijek, 31 000 Osijek, Croatia
| | - Zrinka Ivanišević
- Department of Dental Medicine, Faculty of Dental Medicine and Health Osijek, J. J. Strossmayer University of Osijek, 31 000 Osijek, Croatia
- Correspondence: (Z.I.); (Ž.P.K.)
| | - Željka Perić Kačarević
- Interdisciplinary University Study of Molecular Biosciences, J. J. Strossmayer University of Osijek, 31 000 Osijek, Croatia
- Department of Anatomy, Histology, Embriology, Pathology Anatomy and Pathology Histology, Faculty of Dental Medicine and Health Osijek, J. J. Strossmayer University of Osijek, 31 000 Osijek, Croatia
- Correspondence: (Z.I.); (Ž.P.K.)
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Toledano M, Vallecillo C, Gutierrez-Corrales A, Torres-Lagares D, Toledano-Osorio M, Serrera-Figallo MA. Histomorphometric Analysis of Differential Regional Bone Regeneration Induced by Distinct Doped Membranes. Polymers (Basel) 2022; 14:polym14102078. [PMID: 35631960 PMCID: PMC9147672 DOI: 10.3390/polym14102078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/13/2022] [Accepted: 05/17/2022] [Indexed: 11/20/2022] Open
Abstract
Our objective is to evaluate the regional regenerative potential of calvarial bone in critical-sized defects in a rabbit model using novel nanostructured silica-loaded membranes doped with zinc or doxycycline. Nanostructured membranes of (MMA)1-co-(HEMA)1/(MA)3-co-(HEA)2 loaded with 5 wt% of SiO2 nanoparticles (HOOC-Si-Membranes) were doped with zinc (Zn-HOOC-Si-Membrane) or doxycycline (Dox-HOOC-Si-Membrane). Critical bone defects were created on six New-Zealand-breed rabbit skulls and covered with the membranes. A sham defect without a membrane was used as the control. After six weeks, a histological analysis (toluidine blue technique) was employed to determine the area percentages of newly formed bone, osteoid bone, and soft tissue. The measurements were performed by dividing the total defect area into top (close to the membrane) and bottom (close to the dura mater) regions, or peripheral (adjacent to the old bone) and central (the sum of the remaining zones) regions. The peripheral regions of the defects showed higher osteogenic capacity than the central areas when the membranes were present. The proportion of new bone adjacent to the dura was similar to that adjacent to the membrane only when the HOOC-Si-Membranes and Zn-HOOC-Si-Membranes were used, indicating a direct osteoinductive effect of the membranes.
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Affiliation(s)
- Manuel Toledano
- Faculty of Dentistry, Colegio Máximo de Cartuja s/n, University of Granada, 18071 Granada, Spain; (M.T.); (C.V.)
| | - Cristina Vallecillo
- Faculty of Dentistry, Colegio Máximo de Cartuja s/n, University of Granada, 18071 Granada, Spain; (M.T.); (C.V.)
| | - Aida Gutierrez-Corrales
- Faculty of Dentistry, Oral Surgery Section, University of Sevilla, Avicena s/n, 41009 Sevilla, Spain; (A.G.-C.); (D.T.-L.); (M.-A.S.-F.)
| | - Daniel Torres-Lagares
- Faculty of Dentistry, Oral Surgery Section, University of Sevilla, Avicena s/n, 41009 Sevilla, Spain; (A.G.-C.); (D.T.-L.); (M.-A.S.-F.)
| | - Manuel Toledano-Osorio
- Faculty of Dentistry, Colegio Máximo de Cartuja s/n, University of Granada, 18071 Granada, Spain; (M.T.); (C.V.)
- Correspondence: ; Tel.: +34-958-243-789
| | - María-Angeles Serrera-Figallo
- Faculty of Dentistry, Oral Surgery Section, University of Sevilla, Avicena s/n, 41009 Sevilla, Spain; (A.G.-C.); (D.T.-L.); (M.-A.S.-F.)
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Tomas M, Čandrlić M, Juzbašić M, Ivanišević Z, Matijević N, Včev A, Cvijanović Peloza O, Matijević M, Perić Kačarević Ž. Synthetic Injectable Biomaterials for Alveolar Bone Regeneration in Animal and Human Studies. MATERIALS 2021; 14:ma14112858. [PMID: 34073551 PMCID: PMC8197881 DOI: 10.3390/ma14112858] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/13/2021] [Accepted: 05/22/2021] [Indexed: 01/18/2023]
Abstract
After tooth extraction, the alveolar ridge undergoes dimensional changes. Different bone regeneration biomaterials are used to reduce bone loss. The aim of this article was to systematically review the literature on the effect of injectable synthetic biomaterials and their advantages and disadvantages for new bone formation in the maxilla and mandible in animals and humans. A literature search was conducted in November 2020 via MEDLINE PubMed, Cochrane, and Embase. Of the 501 records screened, abstract analysis was performed on 49 articles, resulting in 21 studies that met the inclusion criteria. Animal studies have shown heterogeneity in terms of animal models, follow-up time, composition of the injectable biomaterial, and different outcome variables such as bone–implant contact, newly formed bone, and peri-implant bone density. Heterogeneity has also been demonstrated by human studies. The following outcomes were observed: newly formed bone, connective tissue, residual injectable bone graft substitute, radiographic density, residual bone height, and different follow-up periods. Further studies, especially in humans, based on the histological and biomechanical properties of the injectable delivery form, are needed to draw more concrete conclusions that will contribute to a better understanding of the benefits of this type of biomaterials and their role in bone regeneration.
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Affiliation(s)
- Matej Tomas
- Department of Dental Medicine, Faculty of Dental Medicine and Health Osijek, J.J. Strossmayer University of Osijek, 31 000 Osijek, Croatia; (M.T.); (M.Č.); (M.J.); (Z.I.); (N.M.)
- Interdisciplinary University Study of Molecular Biosciences, J.J. Strossmayer University of Osijek, 31 000 Osijek, Croatia
| | - Marija Čandrlić
- Department of Dental Medicine, Faculty of Dental Medicine and Health Osijek, J.J. Strossmayer University of Osijek, 31 000 Osijek, Croatia; (M.T.); (M.Č.); (M.J.); (Z.I.); (N.M.)
- Faculty of Medicine Osijek, J.J. Strossmayer University of Osijek, 31 000 Osijek, Croatia
| | - Martina Juzbašić
- Department of Dental Medicine, Faculty of Dental Medicine and Health Osijek, J.J. Strossmayer University of Osijek, 31 000 Osijek, Croatia; (M.T.); (M.Č.); (M.J.); (Z.I.); (N.M.)
- Interdisciplinary University Study of Molecular Biosciences, J.J. Strossmayer University of Osijek, 31 000 Osijek, Croatia
| | - Zrinka Ivanišević
- Department of Dental Medicine, Faculty of Dental Medicine and Health Osijek, J.J. Strossmayer University of Osijek, 31 000 Osijek, Croatia; (M.T.); (M.Č.); (M.J.); (Z.I.); (N.M.)
| | - Nikola Matijević
- Department of Dental Medicine, Faculty of Dental Medicine and Health Osijek, J.J. Strossmayer University of Osijek, 31 000 Osijek, Croatia; (M.T.); (M.Č.); (M.J.); (Z.I.); (N.M.)
- Interdisciplinary University Study of Molecular Biosciences, J.J. Strossmayer University of Osijek, 31 000 Osijek, Croatia
| | - Aleksandar Včev
- Department of Pathophysiology, Physiology and Immunology, Faculty of Dental Medicine and Health Osijek, J.J. Strossmayer University of Osijek, 31 000 Osijek, Croatia;
| | - Olga Cvijanović Peloza
- Department of Anatomy, Medical Faculty of the University of Rijeka, 51 000 Rijeka, Croatia;
| | - Marko Matijević
- Department of Dental Medicine, Faculty of Dental Medicine and Health Osijek, J.J. Strossmayer University of Osijek, 31 000 Osijek, Croatia; (M.T.); (M.Č.); (M.J.); (Z.I.); (N.M.)
- Correspondence: (M.M.); (Ž.P.K.)
| | - Željka Perić Kačarević
- Department of Anatomy, Histology, Embriology, Pathology Anatomy and Pathology Histology, Faculty of Dental Medicine and Health Osijek, J.J. Strossmayer University of Osijek, 31 000 Osijek, Croatia
- Correspondence: (M.M.); (Ž.P.K.)
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On-lay grafting of a calcium hydroxyapatite bone substitute: A preliminary animal experimental study. J Orthop Sci 2020; 25:1101-1106. [PMID: 32046936 DOI: 10.1016/j.jos.2019.12.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 11/26/2019] [Accepted: 12/27/2019] [Indexed: 01/15/2023]
Abstract
BACKGROUND Bone substitutes are widely accepted for various clinical applications. However, the usage is predominantly intraosseous implantation, whereas extraosseous on-lay grafting is rare and lacks scientific evidence. The purpose of this study is to elucidate whether osteoconduction occurs in on-lay grafted bone substitute. METHODS Custom-made interconnected porous calcium hydroxyapatite ceramic (IPCHA) was on-lay grafted with screw or anchor fixation (S- and A-groups, respectively) at the anterior aspect of the femur of skeletally mature Japanese white rabbits. At 3, 6 and 12 weeks postoperatively, 4 samples for each time point and each group were evaluated by microfocus computed tomography (micro-CT) and histology. RESULTS Volume-rendered three-dimensional micro-CT images showed a high-density calcified area infiltrating IPCHA from the femoral cortex as of 6 weeks. When quantified, the calcified volume per unit volume first showed no difference between the two groups at 3 weeks but increased over time, and became significantly greater in the S-group than in the A-group (p = 0.012 and 0.004 at 6 and 12 weeks, respectively). Histologically, IPCHA pores were first occupied by fibrous tissue at 3 weeks; then, the pores adjacent to the femoral cortex were gradually replaced by bony tissue as of 6 weeks for both fixations. CONCLUSIONS IPCHA allowed new bone formation inside the material even though it was implanted in an on-lay fashion on the cortical bone. Our results suggested that on-lay grafted IPCHA exerted its osteoconductivity well, with more new bone forming in screw-fixated samples than in anchor-fixated samples.
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Prisinoto NR, Molon RSD, Scardueli CR, Spin-Neto R, Marcantonio RAC, Oliveira GJPLD. Alendronate Impairs Healing of Calvaria Critical Defects After Bone Graft With Different Bone Substitute Materials. J Oral Maxillofac Surg 2020; 78:2184-2194. [PMID: 32961127 DOI: 10.1016/j.joms.2020.08.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 08/24/2020] [Accepted: 08/24/2020] [Indexed: 10/23/2022]
Abstract
PURPOSE The aim of this preclinical study was to evaluate the healing of critical-sized defects (CSDs) in the calvarial bone of rats grafted with deproteinized bovine bone graft (DBB) and with a combination of hydroxyapatite (HA) and β-tricalcium phosphate (TCP) and bisphosphonate treatment. MATERIALS AND METHODS Eighty-four animals were randomly divided into 2 groups according to the type of solution administered: the control group (CTR, saline solution) and the test group (alendronate [ALD]; sodium alendronate-50 μg/kg/day). Medications were administered via oral gavage starting 15 days before the surgical procedure until the end of the experiment. A CSD (5 mm in diameter) was made in the calvaria of each animal, and the rats were randomly allocated to 3 subgroups according to the biomaterial used to fill the defect: coagulum, DBB, and HA/TCP. The animals were sacrificed 15 and 60 days after the surgical procedure (n = 7 animals/period/subgroup). Microcomputed tomography was used to evaluate the percentage of mineralized tissues (volume). The amount of newly formed bone and remaining bone substitute material in the calvaria were analyzed by histomorphometry. RESULTS There were no differences between the CTR and ALD groups with regard to the volume of mineralized tissues. The DBB and HA/TCP subgroups of CTR animals presented a significant increase in newly formed bone compared with these subgroups of ALD animals after 60 days of healing. CONCLUSIONS Collectively, our findings indicate that the use of oral ALD reduced bone formation in CSD in the calvaria of rats grafted with DBB and HA/TCP.
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Affiliation(s)
- Nuryê Rezende Prisinoto
- MS Student, Department of Periodontology, Dental School, UFU - Universidade Federal de Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Rafael Scaf de Molon
- PhD and Post-Doc, Department of Diagnosis and Surgery, School of Dentistry at Araraquara, University of Est. Paulista, Araraquara, Brazil
| | - Cássio Rocha Scardueli
- PhD and Post-Doc, Department of Diagnosis and Surgery, School of Dentistry at Araraquara, University of Est. Paulista, Araraquara, Brazil
| | - Rubens Spin-Neto
- Associate Professor, Section of Oral Radiology, Department of Dentistry-Aarhus University, Aarhus, Denmark
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Gonçalves FC, Oliveira GJPLD, Scardueli CR, Spin-Neto R, Stavropoulos A, Marcantonio RAC. Cyclosporine A impairs bone repair in critical defects filled with different osteoconductive bone substitutes. Braz Oral Res 2020; 34:e007. [PMID: 32049108 DOI: 10.1590/1807-3107bor-2020.vol34.0007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 11/01/2019] [Indexed: 12/29/2022] Open
Abstract
The aim of this study was to assess the influence of cyclosporine administration on the repair of critical-sized calvaria defects (CSDs) in rat calvaria filled with diverse biomaterials. Sixty animals were divided into two groups: the control (CTR) group (saline solution) and the cyclosporine (CCP) group (cyclosporine, 10 mg/kg/day). These medications were administered daily by gavage, beginning 15 days before the surgical procedure and lasting until the day the animals were euthanized. A CSD (5 mm Ø) was made in the calvaria of each animal, which was allocated to one of 3 subgroups, according to the biomaterial used to fill the defect: coagulum (COA), deproteinized bovine bone (DBB), or biphasic calcium phosphate ceramics of hydroxyapatite and β-phosphate tricalcium (HA/TCP). Euthanasia of the animals was performed 15 and 60 days after the surgical procedure (n = 5 animals/period/subgroup). Bone repair (formation) assessment was performed through microtomography and histometry, while the analyses of the expression of the BMP2, Osteocalcin, and TGFβ1 proteins were performed using immunohistochemistry. The CSDs not filled with biomaterials demonstrated lower bone formation in the CCP group. At 15 days, less bone formation was observed in the CSDs filled with DBB, a smaller volume of mineralized tissue was observed in the CSDs filled with HA/TCP, and the expression levels of BMP2 and osteocalcin were lower in the CCP group compared to the CTR group. The use of cyclosporine impaired bone repair in CSD, and this effect can be partially explained by the suppression of BMP2 and osteocalcin expression.
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Affiliation(s)
- Fernanda Castanheira Gonçalves
- Universidade Estadual de São Paulo - Unesp, School of Dentistry Araraquara, Department of Diagnosis and Surgery, Araraquara, SP, Brazil
| | | | - Cassio Rocha Scardueli
- Universidade Estadual de São Paulo - Unesp, School of Dentistry Araraquara, Department of Diagnosis and Surgery, Araraquara, SP, Brazil
| | - Rubens Spin-Neto
- Aarhus University, Department of Dentistry and Oral Health, Section of Oral Radiology, Aarhus, Denmark
| | - Andreas Stavropoulos
- Malmo University, Department of Community Dentistry and Periodontology, Malmö, Sweden
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Omar O, Elgali I, Dahlin C, Thomsen P. Barrier membranes: More than the barrier effect? J Clin Periodontol 2019; 46 Suppl 21:103-123. [PMID: 30667525 PMCID: PMC6704362 DOI: 10.1111/jcpe.13068] [Citation(s) in RCA: 115] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 12/21/2018] [Accepted: 01/09/2019] [Indexed: 12/13/2022]
Abstract
AIM To review the knowledge on the mechanisms controlling membrane-host interactions in guided bone regeneration (GBR) and investigate the possible role of GBR membranes as bioactive compartments in addition to their established role as barriers. MATERIALS AND METHODS A narrative review was utilized based on in vitro, in vivo and available clinical studies on the cellular and molecular mechanisms underlying GBR and the possible bioactive role of membranes. RESULTS Emerging data demonstrate that the membrane contributes bioactively to the regeneration of underlying defects. The cellular and molecular activities in the membrane are intimately linked to the promoted bone regeneration in the underlying defect. Along with the native bioactivity of GBR membranes, incorporating growth factors and cells in membranes or with graft materials may augment the regenerative processes in underlying defects. CONCLUSION In parallel with its barrier function, the membrane plays an active role in hosting and modulating the molecular activities of the membrane-associated cells during GBR. The biological events in the membrane are linked to the bone regenerative and remodelling processes in the underlying defect. Furthermore, the bone-promoting environments in the two compartments can likely be boosted by strategies targeting both material aspects of the membrane and host tissue responses.
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Affiliation(s)
- Omar Omar
- Department of BiomaterialsInstitute of Clinical SciencesSahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | - Ibrahim Elgali
- Department of BiomaterialsInstitute of Clinical SciencesSahlgrenska AcademyUniversity of GothenburgGothenburgSweden
| | - Christer Dahlin
- Department of BiomaterialsInstitute of Clinical SciencesSahlgrenska AcademyUniversity of GothenburgGothenburgSweden
- Department of Oral Maxillofacial Surgery/ENTNU‐Hospital OrganisationTrollhättanSweden
| | - Peter Thomsen
- Department of BiomaterialsInstitute of Clinical SciencesSahlgrenska AcademyUniversity of GothenburgGothenburgSweden
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Xu A, Qi W, Lin M, Zhu Y, He F. The optimization of sintering treatment on bovine‐derived bone grafts for bone regeneration:
in vitro
and
in vivo
evaluation. J Biomed Mater Res B Appl Biomater 2019; 108:272-281. [PMID: 31013400 DOI: 10.1002/jbm.b.34387] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 03/26/2019] [Accepted: 03/30/2019] [Indexed: 12/25/2022]
Affiliation(s)
- An‐Tian Xu
- Department of Prothodontics, The Affiliated Stomatology Hospital, School of MedicineZhejiang University Hangzhou China
| | - Wen‐Ting Qi
- Department of Prothodontics, The Affiliated Stomatology Hospital, School of MedicineZhejiang University Hangzhou China
| | - Meng‐Na Lin
- Department of Prothodontics, The Affiliated Stomatology Hospital, School of MedicineZhejiang University Hangzhou China
| | - Yu‐Hao Zhu
- Department of Prothodontics, The Affiliated Stomatology Hospital, School of MedicineZhejiang University Hangzhou China
| | - Fu‐Ming He
- Department of Prothodontics, The Affiliated Stomatology Hospital, School of MedicineZhejiang University Hangzhou China
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11
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Fernández-Bodereau E, Dedossi G, Ortega Asencio V, Fernández-Domínguez M, Gehrke SA, Aragoneses JM, Calvo-Guirado JL. Comparison of Different Bone Filling Materials and Resorbable Membranes by Means of Micro-Tomography. A Preliminary Study in Rabbits. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E1197. [PMID: 31013766 PMCID: PMC6514859 DOI: 10.3390/ma12081197] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 04/07/2019] [Accepted: 04/09/2019] [Indexed: 11/16/2022]
Abstract
The purpose of this work was to evaluate the behavior of different membranes and bone filling materials used to fill critical defects in rabbit calvaria. Four defects were prepared in the cranial calvaria of female rabbits. They were randomly divided into three subgroups according to the type of barrier membrane to be used. Four animals carried cross-linked bovine collagen membranes (Mem-Lok, Bio-Horizons, Birmingham, AL, USA)), four human fascia lata membranes (Tissue, Inbiomed SA, Córdoba, Argentina) and four human chorioamniotic membranes (Tissue. Inbiomed SA, Córdoba, Argentina). The defects were filled with the deproteinized bovine bone particulate Bio-Oss® (Geistlich-Pharma AG, Wolhusen, Switzerland), with particulate human hydroxyapatite MinerOss® (Bio-Horizons, Birmingham, AL, USA), with particulate dental material (Tissue Bank Foundation, Inbiomed S.A., Córdoba, Argentina), and the last one was left without the addition of filler material. In the first group of four specimens, a resorbable cross-linked bovine collagen membrane was placed over the skull and defects, without additional fixing. In the second group, a human fascia lata membrane was placed, without additional fixing. In the third group, a human chorioamniotic membrane was placed, without additional fixing. The animals were sacrificed at 4 and 8 weeks. The highest percentages of relative radiological density (average) were recorded considering the amnio-chorionic membranes (83.63%) followed by collagen (81.44%) and finally the fascia lata membranes (80.63%), but the differences were not statistically significant (p > 0.05). The sites grafted with a decellularized tooth (96.83%) and Bio-Oss (88.42%), recorded the highest percentages of radiological density but did not differ significantly from each other (subset 2). The three membranes used did not show statistical differences between them, in any of the two time periods used. There were statistical differences between the filling materials evidencing the presence of a large quantity of calcified material in the defects treated with particulate tooth and deproteinized bovine bone and while smaller amounts of calcified material were registered in the case of defects treated with human hydroxyapatite and those that were not treated.
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Affiliation(s)
| | - Guillermo Dedossi
- Department of Prothodontics, Universidad Nacional de Córdoba, Córdoba 5100, Argentine.
| | | | | | | | - Juan Manuel Aragoneses
- Department of Dental Research in Universidad Federico Henriquez y Carvajal (UFHEC), Santo Domingo 10107, Dominican Republic.
| | - José Luis Calvo-Guirado
- Faculty of Health Sciences, Universidad Católica San Antonio de Murcia (UCAM), 30107 Murcia, Spain.
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12
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Puhar I, Ma L, Suleimenova D, Chronopoulos V, Mattheos N. The effect of local application of low-magnitude high-frequency vibration on the bone healing of rabbit calvarial defects-a pilot study. J Orthop Surg Res 2016; 11:159. [PMID: 27931261 PMCID: PMC5144494 DOI: 10.1186/s13018-016-0494-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 11/26/2016] [Indexed: 11/10/2022] Open
Abstract
Background The objective of this pilot study was to evaluate the effect of local application of low-magnitude high-frequency vibration (LMHFV) on the bone healing of rabbit calvarial defects that were augmented with different grafting materials and membranes. Methods Four calvarial defects were created in each of two New Zealand rabbits and filled with the following materials: biphasic calcium phosphate (BCP), deproteinized bovine bone mineral covered with a non-cross-linked collagen membrane (BO/BG), biphasic calcium phosphate covered with a strontium hydroxyapatite-containing collagen membrane (BCP/SR), and non-cross-linked collagen membrane (BG). Four defects in one rabbit served as a control, while the other was additionally subjected to the local LMHFV protocol of 40 Hz, 16 min per day. The rabbits were sacrificed 1 week after surgery. Histomorphometric analysis was performed to determine the percentages of different tissue compartments. Results Compared to the control defects, the higher percentage of osteoid tissue was found in LMHFV BG defects (35.3 vs. 19.3%), followed by BCP/SR (17.3 vs. 2.0%) and BO/BG (9.3 vs. 1.0%). The fraction occupied by the residual grafting material varied from 40.3% in BO/BG to 22.3% in BCP/SR LMHFV defects. Two-way models revealed that material type was only significant for the osteoid (P= 0.045) and grafting material (P = 0.001) percentages, while the vibration did not provide any statistical significance for all histomorphometric outcomes (P > 0.05). Conclusion Local application of LMHFV did not appear to offer additional benefit in the initial healing phase of rabbit calvarial defects. Histomorphometric measurements after 1 week of healing demonstrated more pronounced signs of early bone formation in both rabbits that were related with material type and independent of LMHFV.
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Affiliation(s)
- Ivan Puhar
- Department of Periodontology, School of Dental Medicine, University of Zagreb, Zagreb, Croatia.,Implant Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Li Ma
- Implant Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Dina Suleimenova
- Implant Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | | | - Nikos Mattheos
- Implant Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China.
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13
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da Silva RC, Crivellaro VR, Giovanini AF, Scariot R, Gonzaga CC, Zielak JC. Radiographic and histological evaluation of ectopic application of deproteinized bovine bone matrix. Ann Maxillofac Surg 2016; 6:9-14. [PMID: 27563599 PMCID: PMC4979350 DOI: 10.4103/2231-0746.186150] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE To evaluate, through radiographic and histological analysis, the tissue reaction induced by a biomaterial based on deproteinized bovine bone matrix (DBBM) in the muscle of sheep. MATERIALS AND METHODS Sixteen sheep were used. The animals underwent surgery to insert polyethylene tubes containing the biomaterial in the muscle of the lower back (ectopic site) and were euthanized after 3 and 6 months. Each sheep received three tubes: Group 1 - sham group (negative control - tube without biomaterial), Group 2 - particulate autogenous bone (positive control), and Group 3 - DBBM biomaterial (GenOx Inorg). The material removed was evaluated by radiographic, macroscopic, and microscopic analysis, descriptively. RESULTS Macroscopic analysis showed that Group 3 had a greater tissue volume maintenance. Microscopic analysis indicated that Group 1 had a higher concentration of dense, thin collagen fibers (3 and 6 months); in Group 2, there was a decrease in the inflammatory process and the deposition of dense, thin collagen fibers (3 and 6 months); in Group 3, the presence of a dense connective tissue was noted, in which the DBBM particles (3 months) were found. On the periphery of these particles, a deposition of basophilic material was found, indicating the formation of mineral particles and the formation of tissues with osteoid characteristics (6 months). CONCLUSION Based on the results obtained, it can be concluded that the biomaterial based on DBBM led to the formation of tissue with similar characteristics to an osteoid matrix in a postoperative period of 6 months. However, none of the groups evaluated showed ectopic bone neoformation.
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Affiliation(s)
| | | | | | - Rafaela Scariot
- Graduate Program in Dentistry, Positivo University, Curitiba, PR, Brazil
| | | | - João César Zielak
- Graduate Program in Dentistry, Positivo University, Curitiba, PR, Brazil
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14
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Dundar S, Ozgur C, Yaman F, Cakmak O, Saybak A, Ozercan IH, Alan H, Artas G, Nacakgedigi O. Guided bone regeneration with local zoledronic acid and titanium barrier: An experimental study. Exp Ther Med 2016; 12:2015-2020. [PMID: 27698687 PMCID: PMC5038562 DOI: 10.3892/etm.2016.3598] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Accepted: 05/27/2016] [Indexed: 11/09/2022] Open
Abstract
The aim of this study was to evaluate the effects on new bone formation of autogenous blood alone or in combination with zoledronic acid (ZA), a β-tricalcium phosphate (β-TCP) graft or ZA plus a β-TCP graft placed under titanium barriers. For this purpose, eight adult male New Zealand white rabbits were used in the study, each with four titanium barriers fixed around four sets of nine holes drilled in the calvarial bones. The study included four groups, each containing 2 rabbits. In the autogenous blood (AB group), only autogeneous blood was placed under the titanium barriers. The three experimental groups were the AB+ZA group, with autogenous blood plus ZA, the AB+β-TCP group, with autogeneous blood plus a β-TCP graft, and the AB+β-TCP+ZA group, with autogeneous blood plus a β-TCP graft and ZA mixture under the titanium barriers. The animals were sacrificed after 3 months. The amounts of new bone formation identified histomorphometrically were found to be higher after 3 months than at the time of surgery in all groups. The differences between the groups were examined with histomorphometric analysis, and statistically significant differences were identified at the end of the 3 months. The bone formation rate in the AB+β-TCP+ZA group was determined to be significantly higher than that in the other groups (P<0.05). In the AB+ZA and AB+β-TCP groups, the bone formation rate was determined to be significantly higher than that in the AB group (P<0.05). No statistically significant difference in bone formation rate was observed between the AB+β-TCP and AB+ZA groups. Local ZA used with autogeneous blood and/or graft material appears to be a more effective method than the use of autogeneous blood or graft alone in bone augmentation executed with a titanium barrier.
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Affiliation(s)
- Serkan Dundar
- Department of Periodontology, Faculty of Dentistry, Firat University, Elazığ, 23119 Elazığ, Turkey
| | - Cem Ozgur
- Department of Oral Maxillofacial Surgery, Corlu Dental and Oral Health Centre, Ministry of Health, Tekirdağ, 59850 Tekirdağ, Turkey
| | - Ferhan Yaman
- Department of Oral Maxillofacial Surgery, Faculty of Dentistry, Dicle University, Diyarbakır, 21280 Diyarbakır, Turkey
| | - Omer Cakmak
- Department of Periodontology, Faculty of Dentistry, Afyon Kocatepe University, Afyonkarahisar, 03200 Afyon, Turkey
| | - Arif Saybak
- Private Practice, Adana, 01220 Adana, Turkey
| | - Ibrahim Hanifi Ozercan
- Department of Medical Pathology, Faculty of Medicine, Firat University, Elazığ, 23119 Elazığ, Turkey
| | - Hilal Alan
- Department of Oral Maxillofacial Surgery, Faculty of Dentistry, Inonu University, Malatya, 44280 Malatya, Turkey
| | - Gokhan Artas
- Department of Medical Pathology, Faculty of Medicine, Firat University, Elazığ, 23119 Elazığ, Turkey
| | - Onur Nacakgedigi
- Department of Restorative Dentistry, Dicle University, Diyarbakır, 21280 Diyarbakır, Turkey
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15
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Moya JS, Martínez A, López-Píriz R, Guitián F, Díaz LA, Esteban-Tejeda L, Cabal B, Sket F, Fernández-García E, Tomsia AP, Torrecillas R. Histological response of soda-lime glass-ceramic bactericidal rods implanted in the jaws of beagle dogs. Sci Rep 2016; 6:31478. [PMID: 27515388 PMCID: PMC4981854 DOI: 10.1038/srep31478] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 07/20/2016] [Indexed: 12/27/2022] Open
Abstract
Bacterial and fungal infections remain a major clinical challenge. Implant infections very often require complicated revision procedures that are troublesome to patients and costly to the healthcare system. Innovative approaches to tackle infections are urgently needed. We investigated the histological response of novel free P2O5 glass-ceramic rods implanted in the jaws of beagle dogs. Due to the particular percolated morphology of this glass-ceramic, the dissolution of the rods in the animal body environment and the immature bone formation during the fourth months of implantation maintained the integrity of the glass-ceramic rod. No clinical signs of inflammation took place in any of the beagle dogs during the four months of implantation. This new glass-ceramic biomaterial with inherent bactericidal and fungicidal properties can be considered as an appealing candidate for bone tissue engineering.
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Affiliation(s)
- José S Moya
- Nanomaterials and Nanotechnology Research Center (CINN), CSIC - University of Oviedo (UO), Avda de la Vega 4-6, El Entrego 33940, San Martín del Rey Aurelio, Spain.,Institute of Materials Science of Madrid (ICMM-CSIC), Cantoblanco, 28049, Madrid, Spain
| | - Arturo Martínez
- Galician Institute of Ceramics, University of Santiago de Compostela, Avda Maestro Mateo, 15782 Santiago de Compostela, Spain
| | - Roberto López-Píriz
- Nanomaterials and Nanotechnology Research Center (CINN), CSIC - University of Oviedo (UO), Avda de la Vega 4-6, El Entrego 33940, San Martín del Rey Aurelio, Spain
| | - Francisco Guitián
- Galician Institute of Ceramics, University of Santiago de Compostela, Avda Maestro Mateo, 15782 Santiago de Compostela, Spain
| | - Luis A Díaz
- Nanomaterials and Nanotechnology Research Center (CINN), CSIC - University of Oviedo (UO), Avda de la Vega 4-6, El Entrego 33940, San Martín del Rey Aurelio, Spain
| | | | - Belén Cabal
- Nanomaterials and Nanotechnology Research Center (CINN), CSIC - University of Oviedo (UO), Avda de la Vega 4-6, El Entrego 33940, San Martín del Rey Aurelio, Spain
| | - Federico Sket
- IMDEA Materials Institute, C/ Eric Kandel 2, Getafe, 28906, Madrid, Spain
| | - Elisa Fernández-García
- Nanomaterials and Nanotechnology Research Center (CINN), CSIC - University of Oviedo (UO), Avda de la Vega 4-6, El Entrego 33940, San Martín del Rey Aurelio, Spain
| | - Antoni P Tomsia
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Ramón Torrecillas
- Nanomaterials and Nanotechnology Research Center (CINN), CSIC - University of Oviedo (UO), Avda de la Vega 4-6, El Entrego 33940, San Martín del Rey Aurelio, Spain
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16
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López-Álvarez M, Vigo E, Rodríguez-Valencia C, Outeiriño-Iglesias V, González P, Serra J. In vivo evaluation of shark teeth-derived bioapatites. Clin Oral Implants Res 2016; 28:e91-e100. [PMID: 27492736 DOI: 10.1111/clr.12934] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/06/2016] [Indexed: 11/28/2022]
Abstract
OBJECTIVE The present work proposes the shark teeth as a new source of bioapatites for bone filler applications in maxillary sinus elevation, periodontal regeneration or implants placement. This abundant fishing by-product provides an improved hydroxyapatite (HA) with fluorine contributions. The in vivo evaluation of osteointegration and bone mineral density levels promoted by these marine bioapatites was the main objective. MATERIALS AND METHODS Marine bioapatite granules of two sizes (1 mm, <20 μm) were obtained and characterized (XRD, SEM, ICP-OES) to determine morphology and composition. In vivo evaluation was performed, after bioapatites implantation in critical defects of parietal bone of 25 rats, for 3 weeks. Commercial synthetic HA/βTCP (60/40%) material and unfilled defects were used as controls. Radiology, micro-CT, histology and quantification of bone mineral density are presented. RESULTS These marine bioapatites presented a globular porous morphology. A biphasic composition ~70% apatitic (HA, apatite-CaF, fluorapatite) and ~30% non-apatitic phase (whitlockite, tricalcium bis(orthophosphate)), with contributions of F (1.0 ± 0.5%wt), Na (0.9 ± 0.2%wt) and Mg (0.65 ± 0.04%wt) was confirmed. After implantation period, higher osteointegration of 1-mm marine bioapatites than commercial synthetic granules was observed, together with bone formation from the defect surroundings but also at central area (potential osteoinductive properties). New bone cells penetrated inside pores and inter-granular cavities. Higher bone mineral density, in both 1-mm and <20-μm granules, than on commercial synthetic graft was determined, being significant in 1-mm bioapatites (a P < 0.05). CONCLUSION Shark teeth bioapatites were successfully validated as new functionally efficient bone filler in rat model, promoting significantly increased bone mineral density than synthetic control.
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Affiliation(s)
- Miriam López-Álvarez
- New Materials Group, Applied Physics Department, Institute of Biomedical Research (IBI), University of Vigo, Vigo, Spain
| | - Eva Vigo
- Laboratory of Endocrinology, Department of Functional Biology and Health Sciences, Center for Biomedical Research CINBIO, University of Vigo, Vigo, Spain
| | - Cosme Rodríguez-Valencia
- New Materials Group, Applied Physics Department, Institute of Biomedical Research (IBI), University of Vigo, Vigo, Spain
| | - Verónica Outeiriño-Iglesias
- Laboratory of Endocrinology, Department of Functional Biology and Health Sciences, Center for Biomedical Research CINBIO, University of Vigo, Vigo, Spain
| | - Pío González
- New Materials Group, Applied Physics Department, Institute of Biomedical Research (IBI), University of Vigo, Vigo, Spain
| | - Julia Serra
- New Materials Group, Applied Physics Department, Institute of Biomedical Research (IBI), University of Vigo, Vigo, Spain
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17
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Li D, Deng L, Xie X, Yang Z, Kang P. Evaluation of the osteogenesis and angiogenesis effects of erythropoietin and the efficacy of deproteinized bovine bone/recombinant human erythropoietin scaffold on bone defect repair. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2016; 27:101. [PMID: 27091043 DOI: 10.1007/s10856-016-5714-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2016] [Accepted: 04/02/2016] [Indexed: 06/05/2023]
Abstract
Erythropoietin (EPO) could promote the angiogenesis and may also play a role in bone regeneration. This study was conducted to evaluate the osteogenesis and angiogenesis effects of EPO and the efficacy of deproteinized bovine bone/recombinant human EPO scaffold on bone defect repair. Twenty-four healthy adult goats were chosen to build goat defects model and randomly divided into four groups. The goats were treated with DBB/rhEPO scaffolds (group A), porous DBB scaffolds (group B), autogenous cancellous bone graft (group C), and nothing (group D). Animals were evaluated with radiological and histological methods at 4, 8 and 12 weeks after surgery. The grey value of radiographs was used to evaluate the healing of the defects and the outcome revealed that the group A had a better outcome of defect healing compared with group B (P < 0.05). However, the grey values in group A were lower than group C at week 4 and week 8 (P < 0.05), but at week 12 their difference had no statistical significance (P > 0.05). The newly formed bone area was calculated from histological sections and the results demonstrated that the amount of new bone in group A increased significantly compared with that in group B (P < 0.05) but was inferior to that in group C (P > 0.05) at 4, 8, 12 weeks respectively. In addition, the expression of vascular endothelial growth factor (VEGF) by immunohistochemical testing and real-time polymerase chain reaction at 12 weeks in group A was significantly higher than that in group B (P < 0.05), and also better than that in group C at week 4 and week 8 (P < 0.05), but at week 12 their difference had no statistical significance (P > 0.05). Therefore, EPO has significant effects on bone formation and angiogenesis, and has capacity to promote the repair of bone defects. It is worthy of being recommended to further studies.
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Affiliation(s)
- Donghai Li
- Department of Orthopaedics, West China Hospital, Sichuan University, 37# Wainan Guoxue Road, Chengdu, 610041, People's Republic of China
| | - Liqing Deng
- Department of Orthopaedics, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region, 20# Ximianqiaoheng Street, Chengdu, 610041, People's Republic of China
| | - Xiaowei Xie
- Department of Orthopaedics, West China Hospital, Sichuan University, 37# Wainan Guoxue Road, Chengdu, 610041, People's Republic of China
| | - Zhouyuan Yang
- Department of Orthopaedics, West China Hospital, Sichuan University, 37# Wainan Guoxue Road, Chengdu, 610041, People's Republic of China
| | - Pengde Kang
- Department of Orthopaedics, West China Hospital, Sichuan University, 37# Wainan Guoxue Road, Chengdu, 610041, People's Republic of China.
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18
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Castillo-Dalí G, Castillo-Oyagüe R, Terriza A, Saffar JL, Batista-Cruzado A, Lynch CD, Sloan AJ, Gutiérrez-Pérez JL, Torres-Lagares D. 'Pre-prosthetic use of poly(lactic-co-glycolic acid) membranes treated with oxygen plasma and TiO2 nanocomposite particles for guided bone regeneration processes'. J Dent 2016; 47:71-9. [PMID: 26850906 DOI: 10.1016/j.jdent.2016.01.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 01/22/2016] [Accepted: 01/31/2016] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES Guided bone regeneration (GBR) processes are frequently necessary to achieve appropriate substrates before the restoration of edentulous areas. This study aimed to evaluate the bone regeneration reliability of a new poly-lactic-co-glycolic acid (PLGA) membrane after treatment with oxygen plasma (PO2) and titanium dioxide (TiO2) composite nanoparticles. METHODS Circumferential bone defects (diameter: 10mm; depth: 3mm) were created on the parietal bones of eight experimentation rabbits and were randomly covered with control membranes (Group 1: PLGA) or experimental membranes (Group 2: PLGA/PO2/TiO2). The animals were euthanized two months afterwards, and a morphologic study was then performed under microscope using ROI (region of interest) colour analysis. Percentage of new bone formation, length of mineralised bone formed in the grown defects, concentration of osteoclasts, and intensity of osteosynthetic activity were assessed. Comparisons among the groups and with the original bone tissue were made using the Kruskal-Wallis test. The level of significance was set in advance at a=0.05. RESULTS The experimental group recorded higher values for new bone formation, mineralised bone length, and osteoclast concentration; this group also registered the highest osteosynthetic activity. Bone layers in advanced formation stages and low proportions of immature tissue were observed in the study group. CONCLUSIONS The functionalised membranes showed the best efficacy for bone regeneration. CLINICAL SIGNIFICANCE The addition of TiO2 nanoparticles onto PLGA/PO2 membranes for GBR processes may be a promising technique to restore bone dimensions and anatomic contours as a prerequisite to well-supported and natural-appearing prosthetic rehabilitations.
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Affiliation(s)
- Gabriel Castillo-Dalí
- Department of Stomatology, Faculty of Dentistry, University of Seville (US), C/Avicena, s/n, 41009 Seville, Spain
| | - Raquel Castillo-Oyagüe
- Department of Buccofacial Prostheses, Faculty of Dentistry, Complutense University of Madrid (UCM), Pza. Ramón y Cajal, s/n, 28040 Madrid, Spain.
| | - Antonia Terriza
- Institute of Materials Sciences, Advanced Center of Scientific Research (CSIC), Avda. Américo Vespuccio, no. 49, Isla de la Cartuja, 41092 Seville, Spain
| | - Jean-Louis Saffar
- Faculté de Chirurgie Dentaire, Université Paris V- Descartes, rue Maurice Arnoux, no. 1, 92120 Montrouge, Paris, France
| | - Antonio Batista-Cruzado
- Faculté de Chirurgie Dentaire, Université Paris V- Descartes, rue Maurice Arnoux, no. 1, 92120 Montrouge, Paris, France
| | - Christopher D Lynch
- School of Dentistry, College of Biomedical and Life Sciences, Cardiff University, CF14 4XY, Cardiff, Wales, UK
| | - Alastair J Sloan
- School of Dentistry, College of Biomedical and Life Sciences, Cardiff University, CF14 4XY, Cardiff, Wales, UK
| | - José-Luis Gutiérrez-Pérez
- Department of Stomatology, Faculty of Dentistry, University of Seville (US), C/Avicena, s/n, 41009 Seville, Spain
| | - Daniel Torres-Lagares
- Department of Stomatology, Faculty of Dentistry, University of Seville (US), C/Avicena, s/n, 41009 Seville, Spain
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