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Dental Research Journal، جلد ۹، شماره ۵، صفحات ۰-۰
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عنوان انگلیسی Comparison of bone regeneration using three demineralized freeze-dried bone allografts: A histological and histomorphometric study in rabbit calvaria
چکیده انگلیسی مقاله Background: It has been stated that the bone allografts from different tissue banks may lead to various amount of bone induction, so the aim of this study was to evaluate bone regeneration of three demineralized allografts both histologically and histomorphometrically in rabbits calvaria bone defects. Materials and Methods: In this double-blind randomized experimental animal study, 32 critical size defects (11-mm diameter) in the calvaria of 16 male New Zealand white rabbits were randomly fi lled with three demineralized freeze-dried bone allografts (DBM, CENOBONE, DEMBONE), while the nongrafted defect was regarded as control group. After 6 and 12 weeks of healing, the experimental animals were euthanized for specimen preparation. After histological evaluation, histomorphometric analysis was performed to quantify new bone formation and remained graft particles. The data were analyzed by one-way ANOVA with Tukey’s ad-hoc test and t -test. ( P < 0.05 was considered to be statistically signifi cant). Results: Mean percentage of bone formation increased between two healing time, but it was not statistically signifi cant in all groups except DBM which the bone formation signifi cantly decreased ( P = 0.04). There were not statistically signifi cant differences between three allografts in remained particles and bone formation in both healing times and they could not induce signifi cantly more bone formation than control group. Conclusion: Both test and control groups resulted in successful new bone formation. No difference was noted in bone formation and remained particles between three commercial bone allografts. Further studies in this issue may be needed. Key Words: Bone regeneration, demineralized freeze-dried bone allografts, osteoinduction, tissue bank
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نویسندگان مقاله پریچهر بهفرنیا | parichehr behfarnia


محمد شاه ابویی | mohammad shahabooei


فاطمه مشهدی عباس | fatemeh mashhadiabbas


الهام فخاری | elham fakhari


نشانی اینترنتی http://drj.mui.ac.ir/index.php/drj/article/view/1211
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زبان مقاله منتشر شده en
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