1
|
Sansupakorn A, Khongkhunthian P. Implant stability and clinical outcome between implant placement using internal sinus floor elevation with alloplastic bone material grafting and without grafting: A 1-year randomized clinical trial. Clin Oral Investig 2024; 28:342. [PMID: 38801474 DOI: 10.1007/s00784-024-05736-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 05/23/2024] [Indexed: 05/29/2024]
Abstract
OBJECTIVE To compare implant stability and clinical outcome in implant placement between osteotome sinus floor elevation (OSFE) with biphasic calcium phosphate (BCP) which consisted of 30% of hydroxyapatite (HA) and 70% of beta-tricalcium phosphate (β -TCP) grafting material and OSFE without using bone grafting material. The research questions is whether the BCP provides any benefit in OSFE or not. MATERIALS AND METHODS Thirty patients (30 implants) with a single edentulous area of upper premolar or molar were randomly separated into OSFE with BCP (n = 15) and OSFE without grafting (n = 15). The patients were reevaluated 3, 6, 9, and 12 months after implant loading. The clinical assessments (implant stability quotient (ISQ), implant survival-failure rate, and surgical complication) were analyzed. Together with radiographic assessments in 2D (endo-sinus bone gain (ESBG), mean marginal bone change (MMBC)) and 3D (endo-sinus bone gain in CBCT (ESBG-CT)) were evaluated, with a mean follow-up time of at least 12 months of functional loading and prosthetic complication. RESULTS 20 remaining implants (OSFE with BCP, n = 10; OSFE without grafting, n = 10) were analyzed. Mean ISQ was 79.18 ± 3.43 in 1-year follow-up (ISQ; OSFE with BCP = 78.72 ± 3.46, OSFE without grafting = 79.65 ± 3.52). ISQ in both groups increased steadily without significant differences in each follow-up. (p = 0.56). In radiographic evaluation, at 6-, 9-, and 12-month, OSFE without grafting group showed statistically significant lower MMBC (p < 0.05). The 1-year clinical results showed that 2 implants failed in OSFE with BCP, and 1 implant failed in OSFE without grafting. CONCLUSIONS Graft material "BCP" (HA30:TCP70) coupled with OSFE presents no extraordinary benefit in implant stability, clinical and radiographic outcome in 1-year follow-up. CLINICAL RELEVANCE Clinically, OSFE with grafting materials provides no additional benefit. CLINICAL TRIAL REGISTRATION NUMBER TCTR20210517008 (date of registration: May 17, 2021).
Collapse
Affiliation(s)
- Arpapat Sansupakorn
- Center of Excellence for Dental Implantology, Faculty of Dentistry, Chiang Mai University, T. Suthep, A. Muang, Chiang Mai, 50200, Thailand
| | - Pathawee Khongkhunthian
- Center of Excellence for Dental Implantology, Faculty of Dentistry, Chiang Mai University, T. Suthep, A. Muang, Chiang Mai, 50200, Thailand.
| |
Collapse
|
2
|
Wang M, Li B, Feng H, Ye Q, Sun Y, Duan X, He J. Assessment of the osteogenic effect after maxillary sinus floor elevation and simultaneous implantation with or without bone grafts by analyzing trabecular bone parameters: a retrospective study. J Appl Oral Sci 2024; 32:e20230406. [PMID: 38359269 PMCID: PMC10984575 DOI: 10.1590/1678-7757-2023-0406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/14/2023] [Accepted: 12/18/2023] [Indexed: 02/17/2024] Open
Abstract
OBJECTIVE The aim of this population-based retrospective study was to compare the osteogenic effect of newly formed bone after maxillary sinus floor elevation (MSFE) and simultaneous implantation with or without bone grafts by quantitatively analyzing trabecular bone parameters. METHODOLOGY A total of 100 patients with missing posterior maxillary teeth who required MSFE and implantation were included in this study. Patients were divided into two groups: the non-graft group (n=50) and the graft group (n=50). Radiographic parameters were measured using cone beam computed tomography (CBCT), and the quality of newly formed bone was analyzed by assessing trabecular bone parameters using CTAn (CTAnalyzer, SkyScan, Antwerp, Belgium) software. RESULTS In the selected regions of interest, the non-graft group showed greater bone volume/total volume (BV/TV), bone surface/total volume (BS/TV), trabecular number (Tb. N), and trabecular thickness (Tb. Th) than the graft group (p<0.001). The non-graft group showed lower trabecular separation (Tb. Sp) than the graft group (p<0.001). The incidence of perforation and bleeding was higher in the graft group than in the non-graft group (p<0.001), but infection did not significantly differ between groups (p>0.05). Compared to the graft group, the non-graft group showed lower postoperative bone height, gained bone height and apical bone height (p<0.001). CONCLUSION MSFE with and without bone grafts can significantly improve bone formation. In MSFE, the use of bone grafts hinders the formation of good quality bone, whereas the absence of bone grafts can generate good bone quality and limited bone mass.
Collapse
Affiliation(s)
- Mohan Wang
- Anhui Medical UniversityStomatologic Hospital & CollegeKey Laboratory of Oral Diseases Research of Anhui ProvinceHefeiChinaAnhui Medical University, Stomatologic Hospital & College, Key Laboratory of Oral Diseases Research of Anhui Province, Hefei, China.
- Shanghai Jiao Tong University School of MedicineNinth People's HospitalCollege of StomatologyShanghaiChinaShanghai Jiao Tong University School of Medicine, Ninth People's Hospital, College of Stomatology, Department of Oral and Maxillofacial Surgery, Shanghai, China.
| | - Beibei Li
- Anhui Medical UniversityStomatologic Hospital & CollegeKey Laboratory of Oral Diseases Research of Anhui ProvinceHefeiChinaAnhui Medical University, Stomatologic Hospital & College, Key Laboratory of Oral Diseases Research of Anhui Province, Hefei, China.
| | - Hailiang Feng
- Zhejiang University School of MedicineThe Second Affiliated HospitalDepartment of StomatologyHangzhouChinaZhejiang University School of Medicine, The Second Affiliated Hospital, Linping Campus, Department of Stomatology, Hangzhou, China.
| | - Qingsong Ye
- Anhui Medical UniversityStomatologic Hospital & CollegeKey Laboratory of Oral Diseases Research of Anhui ProvinceHefeiChinaAnhui Medical University, Stomatologic Hospital & College, Key Laboratory of Oral Diseases Research of Anhui Province, Hefei, China.
| | - Yahui Sun
- Anhui Medical UniversityStomatologic Hospital & CollegeKey Laboratory of Oral Diseases Research of Anhui ProvinceHefeiChinaAnhui Medical University, Stomatologic Hospital & College, Key Laboratory of Oral Diseases Research of Anhui Province, Hefei, China.
| | - Xinxiu Duan
- Anhui Medical UniversityStomatologic Hospital & CollegeKey Laboratory of Oral Diseases Research of Anhui ProvinceHefeiChinaAnhui Medical University, Stomatologic Hospital & College, Key Laboratory of Oral Diseases Research of Anhui Province, Hefei, China.
| | - Jiacai He
- Anhui Medical UniversityStomatologic Hospital & CollegeKey Laboratory of Oral Diseases Research of Anhui ProvinceHefeiChinaAnhui Medical University, Stomatologic Hospital & College, Key Laboratory of Oral Diseases Research of Anhui Province, Hefei, China.
| |
Collapse
|
3
|
Maheshwari S, Taori T, Bajaj P, Reche A. Bicalcium Phosphate as an Asset in Regenerative Therapy. Cureus 2023; 15:e44079. [PMID: 37750142 PMCID: PMC10518049 DOI: 10.7759/cureus.44079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 08/24/2023] [Indexed: 09/27/2023] Open
Abstract
After a loss of a tooth, alveolar bone resorption is immutable, leaving the area devoid of sufficient bone quality and mass for a successful and satisfactory implant or any other dental treatment. To treat this problem of irreversible bone loss, bone grafting is the primary solution and a well-accepted technique. The use of bone grafting procedures has increased in recent years. This review is about the various bone grafting techniques and best-situated material available currently along with their trump cards and limitations. In the thorough discussion regarding bone grafting materials and their substitutes, one alloplastic material has shown unbeaten and the most satisfactory properties than any other material, "bicalcium phosphate" (BCP). BCP is a mixture of hydroxyapatite (HA) and beta-tricalcium phosphate (B-TCP) usually obtained through sintering calcium-deficient apatite (CDA) at or above 700°C or by other methods such as hydrolysis or precipitation. The review also shows comparative studies done to understand the effect, most adequate balance, and impact of ratios of HA/B-TCP on the properties, structure, and success rate of this material. The objective of the review is to enlighten the principal characteristic of the most likely used bone graft material presently, i.e., BCP. The most impeccable characteristic of BCP is its capability to osteointegrate, which results in a superior interface. This interface depicts a dynamic process that includes physicochemical reactions, crystal-protein interactions, cell and tissue colonization, and bone remodeling. BCP has certain essential properties that could be put forth as its advantage over any other substitute. These properties include bioactivity, osteointegration, osteoinduction, osteogenesis, and biodegradation, which are mostly governed by modifying the HA/B-TCP ratio. Other applications of BCP are feasible, such as in drug administration and scaffolds for tissue engineering.
Collapse
Affiliation(s)
- Shefali Maheshwari
- Department of Periodontics, Sharad Pawar Dental College and Hospital, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Tanishka Taori
- Department of Public Health Dentistry, Sharad Pawar Dental College and Hospital, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Pavan Bajaj
- Department of Periodontics, Sharad Pawar Dental College and Hospital, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Amit Reche
- Department of Public Health Dentistry, Sharad Pawar Dental College and Hospital, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| |
Collapse
|
4
|
Yazdanian M, Alam M, Abbasi K, Rahbar M, Farjood A, Tahmasebi E, Tebyaniyan H, Ranjbar R, Hesam Arefi A. Synthetic materials in craniofacial regenerative medicine: A comprehensive overview. Front Bioeng Biotechnol 2022; 10:987195. [PMID: 36440445 PMCID: PMC9681815 DOI: 10.3389/fbioe.2022.987195] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 10/26/2022] [Indexed: 07/25/2023] Open
Abstract
The state-of-the-art approach to regenerating different tissues and organs is tissue engineering which includes the three parts of stem cells (SCs), scaffolds, and growth factors. Cellular behaviors such as propagation, differentiation, and assembling the extracellular matrix (ECM) are influenced by the cell's microenvironment. Imitating the cell's natural environment, such as scaffolds, is vital to create appropriate tissue. Craniofacial tissue engineering refers to regenerating tissues found in the brain and the face parts such as bone, muscle, and artery. More biocompatible and biodegradable scaffolds are more commensurate with tissue remodeling and more appropriate for cell culture, signaling, and adhesion. Synthetic materials play significant roles and have become more prevalent in medical applications. They have also been used in different forms for producing a microenvironment as ECM for cells. Synthetic scaffolds may be comprised of polymers, bioceramics, or hybrids of natural/synthetic materials. Synthetic scaffolds have produced ECM-like materials that can properly mimic and regulate the tissue microenvironment's physical, mechanical, chemical, and biological properties, manage adherence of biomolecules and adjust the material's degradability. The present review article is focused on synthetic materials used in craniofacial tissue engineering in recent decades.
Collapse
Affiliation(s)
- Mohsen Yazdanian
- Research Center for Prevention of Oral and Dental Diseases, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mostafa Alam
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Kamyar Abbasi
- Department of Prosthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahdi Rahbar
- Department of Restorative Dentistry, School of Dentistry, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Amin Farjood
- Orthodontic Department, Dental School, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Elahe Tahmasebi
- Research Center for Prevention of Oral and Dental Diseases, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Hamid Tebyaniyan
- Department of Science and Research, Islimic Azade University, Tehran, Iran
| | - Reza Ranjbar
- Research Center for Prevention of Oral and Dental Diseases, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Arian Hesam Arefi
- Dental Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| |
Collapse
|
5
|
Cheah CW, Al-Namnam NM, Lau MN, Lim GS, Raman R, Fairbairn P, Ngeow WC. Synthetic Material for Bone, Periodontal, and Dental Tissue Regeneration: Where Are We Now, and Where Are We Heading Next? MATERIALS 2021; 14:ma14206123. [PMID: 34683712 PMCID: PMC8537464 DOI: 10.3390/ma14206123] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/28/2021] [Accepted: 10/11/2021] [Indexed: 01/21/2023]
Abstract
Alloplasts are synthetic, inorganic, biocompatible bone substitutes that function as defect fillers to repair skeletal defects. The acceptance of these substitutes by host tissues is determined by the pore diameter and the porosity and inter-connectivity. This narrative review appraises recent developments, characterization, and biological performance of different synthetic materials for bone, periodontal, and dental tissue regeneration. They include calcium phosphate cements and their variants β-tricalcium phosphate (β-TCP) ceramics and biphasic calcium phosphates (hydroxyapatite (HA) and β-TCP ceramics), calcium sulfate, bioactive glasses and polymer-based bone substitutes which include variants of polycaprolactone. In summary, the search for synthetic bone substitutes remains elusive with calcium compounds providing the best synthetic substitute. The combination of calcium sulphate and β-TCP provides improved handling of the materials, dispensing with the need for a traditional membrane in guided bone regeneration. Evidence is supportive of improved angiogenesis at the recipient sites. One such product, (EthOss® Regeneration, Silesden, UK) has won numerous awards internationally as a commercial success. Bioglasses and polymers, which have been used as medical devices, are still in the experimental stage for dental application. Polycaprolactone-TCP, one of the products in this category is currently undergoing further randomized clinical trials as a 3D socket preservation filler. These aforementioned products may have vast potential for substituting human/animal-based bone grafts.
Collapse
Affiliation(s)
- Chia Wei Cheah
- Faculty of Dentistry, University of Malaya, Kuala Lumpur 50603, Malaysia; (C.W.C.); (M.N.L.); (G.S.L.)
| | - Nisreen Mohammed Al-Namnam
- School of Dental Sciences, Faculty of Medical Sciences, Newcastle University, Framlington Place, Newcastle upon Tyne NE2 4BW, UK;
| | - May Nak Lau
- Faculty of Dentistry, University of Malaya, Kuala Lumpur 50603, Malaysia; (C.W.C.); (M.N.L.); (G.S.L.)
| | - Ghee Seong Lim
- Faculty of Dentistry, University of Malaya, Kuala Lumpur 50603, Malaysia; (C.W.C.); (M.N.L.); (G.S.L.)
| | - Renukanth Raman
- Oral Health Division, Ministry of Health Malaysia, Putrajaya 62590, Malaysia;
| | - Peter Fairbairn
- Department of Periodontology and Implant Dentistry, School of Dentistry, University of Detroit Mercy, 2700 Martin Luther King, Jr. Boulevard, Detroit, MI 48208, USA;
| | - Wei Cheong Ngeow
- Faculty of Dentistry, University of Malaya, Kuala Lumpur 50603, Malaysia; (C.W.C.); (M.N.L.); (G.S.L.)
- Correspondence: ; Tel.: +60-3-79674962; Fax: +60-3-79674534
| |
Collapse
|
6
|
Gadkari N, Bawane S, Chopra R, Bhate K, Waknis P, Kakodkar P, Kulkarni D, Kale P. Demineralized freeze-dried bone allograft vs biphasic calcium phosphate: A comparison of two graft materials in sinus augmentation procedures - A pilot study. ADVANCES IN ORAL AND MAXILLOFACIAL SURGERY 2021. [DOI: 10.1016/j.adoms.2021.100177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
|
7
|
Alkaabi SA, Natsir Kalla DS, Alsabri GA, Fauzi A, Tajrin A, Müller WEG, Schröder HC, Wang XG, Forouzanfar T, Helder MN, Ruslin M. Polyphosphate (PolyP) for alveolar cleft repair: study protocol for a pilot randomized controlled trial. Trials 2021; 22:393. [PMID: 34127045 PMCID: PMC8201927 DOI: 10.1186/s13063-021-05325-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 05/12/2021] [Indexed: 01/17/2023] Open
Abstract
Objective Bone grafting is an important surgical procedure to restore missing bone in patients with alveolar cleft lip/palate, aiming to stabilize either sides of the maxillary segments by inducing new bone formation, and in bilateral cleft cases also to stabilize the pre-maxilla. Polyphosphate (PolyP), a physiological polymer composed of orthophosphate units linked together with high-energy phosphate bonds, is a naturally existing compound in platelets which, when complexed with calcium as Ca-polyP microparticles (Ca-polyP MPs), was proven to have osteoinductive properties in preclinical studies. Aim To evaluate the feasibility, safety, and osteoinductivity of Ca-polyP MPs as a bone-inducing graft material in humans. Methods This prospective non-blinded first-in-man clinical pilot study shall consist of 8 alveolar cleft patients of 13 years or older to evaluate the feasibility and safety of Ca-PolyP MPs as a bone-inducing graft material. Patients will receive Ca-polyP graft material only or Ca-polyP in combination with biphasic calcium phosphate (BCP) as a bone substitute carrier. During the trial, the participants will be investigated closely for safety parameters using radiographic imaging, regular blood tests, and physical examinations. After 6 months, a hollow drill will be used to prepare the implantation site to obtain a biopsy. The radiographic imaging will be used for clinical evaluation; the biopsy will be processed for histological/histomorphometric evaluation of bone formation. Discussion This is the first-in-man study evaluating the safety and feasibility of the polyP as well as the potential regenerative capacity of polyP using an alveolar cleft model. Trial registration Indonesian Trial Registry INA-EW74C1N. Registered on 12 June 2020
Collapse
Affiliation(s)
- S A Alkaabi
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.,Department of Oral and Maxillofacial Surgery, Al Kuwait Hospital, Ministry of Health, Dubai, United Arab Emirates
| | - D S Natsir Kalla
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.,Department of Biochemistry, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - G A Alsabri
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - A Fauzi
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, 90425, Indonesia
| | - A Tajrin
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, 90425, Indonesia
| | - W E G Müller
- Institut für Physiologische Chemie, Angewandte Molekularbiologie, Universitätsmedizin, Johannes Gutenberg-Universität Mainz, Mainz, Germany.,NanotecMARIN GmbH, Mainz, Germany
| | - H C Schröder
- Institut für Physiologische Chemie, Angewandte Molekularbiologie, Universitätsmedizin, Johannes Gutenberg-Universität Mainz, Mainz, Germany.,NanotecMARIN GmbH, Mainz, Germany
| | - X G Wang
- Institut für Physiologische Chemie, Angewandte Molekularbiologie, Universitätsmedizin, Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - T Forouzanfar
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.,Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, 90425, Indonesia
| | - M N Helder
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam University Medical Centers and Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.,Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, 90425, Indonesia
| | - M Ruslin
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Hasanuddin University, Makassar, 90425, Indonesia.
| |
Collapse
|
8
|
Brito MA, Mecca LEA, Sedoski TDS, Mroczek T, Claudino M, Araujo MRD. Histological Comparison between Biphasic Calcium Phosphate and Deproteinized Bovine Bone on Critical-Size Bone Defects. Braz Dent J 2021; 32:26-33. [PMID: 33913998 DOI: 10.1590/0103-6440202103583] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 07/15/2020] [Indexed: 11/21/2022] Open
Abstract
The limited options for bone repair have led to an extensive research of the field and the development of alloplastic and xenogeneic grafts. The purpose of this study was to evaluate bone repair with two bone substitutes: deproteinized bovine bone (DBB) and biphasic calcium phosphate ceramic (BCP) in critical-size defect. A total of 8-mm defects were made in the parietal bones of rabbits (n=12). The animals were divided into three experimental groups: sham (defect filled with a blood clot), DBB (defect filled with DBB), and BCP (defect filled with BCP). After the experimental periods of 15 and 45 days, the animals were euthanized and submitted to histomorphometric analysis. The total defect area, mineralized tissue area, biomaterial area, and soft tissue area were evaluated. A greater amount of immature bone tissue and biomaterial particles were observed in the BCP group compared to DBB and sham at 45 days (p<0.05). There was no difference in the qualitative pattern of bone deposition between DBB and BCP. However, the sham group did not show osteoid islands along with the defect, presenting a greater amount of collagen fibers as well in relation to the DBB and BCP groups. There was a greater number of inflammatory cells in the DBB at 45 days compared to BCP and sham groups. In conclusion, BCP and DBB are options for optimizing the use of bone grafts for maxillofacial rehabilitation. Bone defects treated with BCP showed greater deposition of bone tissue at 45 days.
Collapse
Affiliation(s)
| | | | | | - Tayline Mroczek
- Departament of Pharmaceutical Sciences, UEPG - Universidade Estadual de Ponta Grossa, PR, Brazil
| | - Marcela Claudino
- Departament of Dentistry, UEPG - Universidade Estadual de Ponta Grossa, PR, Brazil
| | | |
Collapse
|
9
|
Tissue Level Changes after Maxillary Sinus Floor Elevation with Three Types of Calcium Phosphate Ceramics: A Radiological Study with a 5-Year Follow-Up. MATERIALS 2021; 14:ma14061471. [PMID: 33802924 PMCID: PMC8002644 DOI: 10.3390/ma14061471] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/29/2020] [Accepted: 03/15/2021] [Indexed: 11/17/2022]
Abstract
This study evaluates the radiological changes in tissue height after maxillary sinus floor elevation (MSFE) using three types of calcium phosphate ceramics over a period of up to 5 years after dental implant placement. In 163 patients, MSFE was performed. Three groups of patients were distinguished and treated based on the type of calcium phosphate ceramic used and radiologically evaluated: 40 patients with β-tricalcium phosphate (β-TCP), 76 patients with biphasic calcium phosphate (BCP) 20% hydroxyapatite (HA)-80% β-TCP, and 47 patients with BCP 60% HA-40% β-TCP. Radiological measurements were performed on panoramic radiographs at several time points up to 5 years after dental implant placement. After MSFE, a slow decrease in tissue height measured over time was seen in all three study groups. Resorption of the grafted bone substitutes was more prominent in β-TCP than in BCP ceramics with an HA component (60/40 and 20/80). Loss of tissue height after 5 years was lowest in BCP 60/40 and highest in β-TCP. This radiological study shows a predictable and comparable behavior of the slow decrease in tissue height over time for all three types of calcium phosphate ceramics used in MSFE. The fraction of HA in calcium phosphate ceramics and dental implant loading seems to be beneficial for tissue height maintenance after MSFE.
Collapse
|
10
|
Pignaton TB, Spin-Neto R, Ferreira CEDA, Martinelli CB, de Oliveira GJPL, Marcantonio E. Remodelling of sinus bone grafts according to the distance from the native bone: A histomorphometric analysis. Clin Oral Implants Res 2020; 31:959-967. [PMID: 32716570 DOI: 10.1111/clr.13639] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 07/16/2020] [Accepted: 07/19/2020] [Indexed: 12/20/2022]
Abstract
OBJECTIVES To evaluate graft remodelling according to the distance from the native bone in maxillary sinuses grafted with anorganic bovine bone (ABB). MATERIAL AND METHODS Bilateral sinus grafting was performed in twenty patients with residual bone height <5 mm before implant placement. After 8 months, biopsy samples were harvested, and histomorphometric analysis was performed to examine bone formation according to the distance (in mm) from the native bone (sinus floor). In the grafted area, the percentages of new bone (NB), residual graft material (rABB), and soft tissue (ST) were evaluated. RESULTS A total of 103 biopsy samples were evaluated, and the percentages of NB, rABB, and ST were 31.62 ± 9.85%, 18.94 ± 7.88%, and 49.41 ± 9.52%, respectively, in the 1st mm; 27.15 ± 9.83%, 23.33 ± 9.45%, and 49.53 ± 11.73%, respectively, in the 2nd mm; 23.61 ± 13.02%, 21.35 ± 11.08%, and 55.03 ± 16.14%, respectively, in the 3rd mm; and 21.67 ± 12.29%, 19.67 ± 10.28%, and 58.66 ± 12.46%, respectively, in the 4th mm. The 1st millimetre of the grafted area (closer to the native bone) presented a larger amount of NB than the other portions of the grafted areas and a smaller amount of rABB than the 2nd mm of the grafted area (p < .05). The amount of ST was larger in the 3rd and 4th mm of the grafted area than in the first 2 millimetres (p < .05). CONCLUSION The distance from the native bone influences bone formation following maxillary sinus augmentation.
Collapse
Affiliation(s)
- Tulio Bonna Pignaton
- Department of Diagnosis and Surgery, Araraquara Dental School, UNESP, Araraquara, Brazil
| | - Rubens Spin-Neto
- Section of Oral Radiology, School of Dentistry,, Aarhus University, Aarhus, Denmark
| | | | | | | | - Elcio Marcantonio
- Department of Diagnosis and Surgery, Araraquara Dental School, UNESP, Araraquara, Brazil
| |
Collapse
|
11
|
Lee JS, Cha JK, Thoma DS, Jung UW. Report of a human autopsy case in maxillary sinuses augmented using a synthetic bone substitute: Micro-computed tomographic and histologic observations. Clin Oral Implants Res 2018; 29:339-345. [PMID: 29349884 DOI: 10.1111/clr.13124] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/09/2017] [Indexed: 11/30/2022]
Abstract
OBJECTIVE This study of a human autopsy case aimed to characterize the histologic and micro-computed tomographic results of maxillary sinus augmentation using a synthetic bone substitute and simultaneous implant placement at 6 years. MATERIAL AND METHODS This report is based on the whole-body donation of a 62-year-old male patient who died due to bladder cancer. Implants had been placed in conjunction with sinus augmentation using a mixture of biphasic calcium phosphate and autogenous bone into both maxillary sinuses 6 years prior to the body donation. The maxillary sinus areas containing implants were gently removed from the cadaver and scanned using high-resolution micro-computed tomography. Samples were sectioned, prepared for undecalcified histologic slides and stained with haematoxylin-eosin. RESULTS The augmented volume was observed up to the apex of the implants, which were successfully osseointegrated. Cross-sectional micro-computed tomographic views revealed that the bone-substitute particles were embedded in radiopaque-mineralized tissues showing a trabecular pattern around the implants. The histologic analysis revealed mature lamellar bone surrounding the remaining bone-substitute particles as well as well-organized bone marrow spaces in the augment bone area and around the dental implants. CONCLUSION This human autopsy study histologically confirmed the presence of successful bone formation and long-term volume stability after sinus augmentation using biphasic calcium phosphate and simultaneous implant placement.
Collapse
Affiliation(s)
- Jung-Seok Lee
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, South Korea
| | - Jae-Kook Cha
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, South Korea
| | - Daniel S Thoma
- Department of Fixed and Removable Prosthodontics and Dental Material Science, Dental School, University of Zurich, Zurich, Switzerland
| | - Ui-Won Jung
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, South Korea
| |
Collapse
|