Effects of Different Tissue Adhesives in Treating Calvarial Bone Defects

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The purpose of this study is to investigate the potential of the 2 different tissue adhesive materials as a barrier for guided bone regeneration and to compare them with resorbable collogen membrane on autogenous grafted critical-sized cortical bone defects. Twenty-four rats were divided into 3 groups: Group M, Group G, and Group B. A 5-mm diameter critical-size defect was created in the calvarium of each animal. All defects were filled by autogenous graft harvested from tibia. In group M, resorbable collogen membrane was applied to defect area. In groups G and B, defects were closed by Glubran2 and Bioglue. All animals were euthanized at 28 days postoperative. Stereologic analyses were performed. New bone area and connective tissue volumes were measured. Mean new bone volumes were 0.97 ± 0.28, 0.59 ± 0.2, and 0.8 ± 0.32 mm3 in groups M, G, and B, respectively. The differences between groups were not statistically significant (P  > 0.05). In group M, mean connective tissue volumes were 4.25 ± 0.7 mm3, in groups G and B, 2.9 ± 1.82 and 4.54 ± 0.64 mm3. Connective tissue volume differences were not statistically significant between groups. Glubran2 and Bioglue may play a role as a barrier for guided bone regeneration in treatment of critical size defects.

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