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Objectives: To compare a monophasic (100% ß-TCP) and a biphasic (60% HA and 40% ß-TCP) bone substitute material (BSM) regarding biocompatibility, osteoconductivity and implant stability using histological, radiological and resonance frequency analysis.
Material And Methods: Sixty-seven sinus floor elevations were performed in 60 patients. One patient group (monophasic bone substitute [MBS], 30 patients, 32 sinuses) was augmented by the use of the monophasic material (Bioresorb , Sybron Implant Solutions, Bremen, Germany), while the second group (biphasic bone substitute (BBS), 30 patients, 35 sinuses) received a biphasic material (Maxresorb , Botiss Biomaterials, Berlin, Germany). Cone beam CT images were taken immediately after augmentation and prior to implant placement after 6 months. Trephines were harvested, while the implant bed was prepared. Resonance frequency analysis was performed immediately after implant placement and 6 months later. Descriptive analysis was performed on all augmented sinus (n = 67). For statistical comparison of the groups, one sinus of each bilaterally treated patient was randomly excluded, resulting in 30 sinuses grafted with MBS and 30 sinuses grafted with BBS (n = 60).
Results: Histomorphometrical analysis of all sinuses displayed comparable results for both groups regarding new bone matrix (MBS 36.16 ± 19.37%, BBS 38.42 ± 12.61%), residual BSM (MBS 30.26 ± 11.7%, BBS 32.66 ± 12.57%) and non-mineralized tissue (MBS 34.29 ± 18.32%, BBS 28.92 ± 15.04) %) (P > 0.05, respectively). Radiological volume of BBS was significantly more stable (volume loss of 22.2% for MBS, 6.66% for BBS; P < 0.001), and homogeneity of the graft after 6 months was higher for BBS than that for MBS (P < 0.05). Resonance frequency analysis endorsed a higher implant stability quotient for BBS after 6 months than that for MBS (MBS 78.31 ± 5.81, BBS 80.42 ± 6.31; P < 0.05, Mann-Whitney U-test, respectively).
Conclusion: Both monophasic and biphasic materials show good biocompatibility and osteoconductivity with satisfactory support on implant stability. BBS remains more stable in terms of volume maintenance and radiological graft homogeneity after a healing period of 6 months.
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http://dx.doi.org/10.1111/clr.12983 | DOI Listing |
Bioact Mater
March 2025
Department of Oral, Plastic and Aesthetic Surgery, Hospital of Stomatology, Jilin University, Changchun, 130021, China.
Clinically, infectious bone defects represent a significant threat, leading to osteonecrosis, severely compromising patient prognosis, and prolonging hospital stays. Thus, there is an urgent need to develop a bone graft substitute that combines broad-spectrum antibacterial efficacy and bone-inductive properties, providing an effective treatment option for infectious bone defects. In this study, the precision of digital light processing (DLP) 3D printing technology was utilized to construct a scaffold, incorporating zinc oxide nanoparticles (ZnO-NPs) modified barium titanate (BT) with hydroxyapatite (HA), resulting in a piezoelectric ceramic scaffold designed for the repair of infected bone defects.
View Article and Find Full Text PDFClin Adv Periodontics
December 2024
Department of Periodontal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
Background: Recombinant human fibroblast growth factor-2 (rhFGF-2) has been shown to effectively promote the formation of new periodontal tissues, and its efficacy has been demonstrated in clinical settings. Moreover, the clinical and radiographic outcomes in the treatment of periodontal infrabony defects can be improved by using rhFGF-2 in combination with a bone substitute. Here, we present a case of four-wall bone defect in a tooth treated by combination regenerative therapy using rhFGF-2 and beta-tricalcium phosphate (β-TCP).
View Article and Find Full Text PDFObjective: Aim: The aim of this study is to determine the dynamics of histoarchitectural changes in the bone-ceramic regenerate after transplantation β-tricalcium phosphate into an experimental defect in the rabbit mandible.
Patients And Methods: Materials and Methods: Adult male rabbits aged 6-7 months and weighing 2.5-3 kg were used for the study.
Clin Oral Implants Res
December 2024
Department of Periodontology, Institute of Odontology, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden.
Objective: To evaluate the potential mid-term benefit of the use of a bone substitute material in the reconstructive surgical treatment of peri-implantitis.
Methods: A total of 120 subjects (127 implants) affected by peri-implantitis were followed over 3 years in a multicenter randomized clinical trial. Participants had been randomized to either control (access flap surgery) or test group (access flap surgery and bone substitute material).
J Biomed Mater Res B Appl Biomater
January 2025
Department of Surgery, School of Veterinary Medicine and Animal Science, University of São Paulo (FMVZ-USP), São Paulo, SP, Brazil.
Comminuted fractures associated with tissue loss can adversely affect bone regeneration. Biomaterials enriched with mesenchymal stem cells (MSCs) employed for supporting osteosynthesis and potentiating osteoconduction are necessary to fill these bone defects. Natural compound biomaterials, similar to bone tissue, have been extensively tested in animal models for clinical use.
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