TY - JOUR
T1 - The influence of perforating the autogenous block bone and the recipient bed in dogs. Part I
T2 - A radiographic analysis
AU - Oh, Kyung Choon
AU - Cha, Jae Kook
AU - Kim, Chang Sung
AU - Choi, Seong Ho
AU - Chai, Jung Kiu
AU - Jung, Ui Won
PY - 2011/11
Y1 - 2011/11
N2 - Objectives: This study evaluated radiographically the integration and volume maintenance of grafted autogenous block bone under various cortical bone perforation conditions in dogs. Material and methods: Five mongrel dogs were used. Each dog received four differently prepared onlay block bone grafts: a solid block graft was fixed on either (1) a cortically perforated recipient bed (SGPR) or (2) a nonperforated recipient bed (SGNPR), a perforated block graft was fixed on either (3) a nonperforated recipient bed (PGNPR) or (4) a cortically perforated recipient bed (PGPR). The animals were sacrificed at 1 day, 4 days, 10 days, 4 weeks, and 8 weeks after surgery. Specimens were prepared and radiographic analysis was conducted by using micro-computed tomography. The residual bone volume (RBV; mm 3), cross-sectional bone area (BA; mm 2), and residual height (RH; %) of the grafted block bone were measured radiographically. Results: The interface between the recipient bed and the graft showed no signs of bone integration at 1, 4, and 10 days of healing. However, at 4 weeks of healing, bone integration was observed in all groups. The RBV, BA, and RH of the grafts gradually decreased by 4 weeks of healing. At 8 weeks, the PGPR condition exhibited a higher RBV, BA, and RH than the other conditions, whereas the SGNPR condition exhibited the lowest RBV, BA, and RH. Conclusion: Within the limitations of this study, it can be concluded that intentional cortical perforation on the recipient bed and block bone graft may influence volume maintenance of the graft.
AB - Objectives: This study evaluated radiographically the integration and volume maintenance of grafted autogenous block bone under various cortical bone perforation conditions in dogs. Material and methods: Five mongrel dogs were used. Each dog received four differently prepared onlay block bone grafts: a solid block graft was fixed on either (1) a cortically perforated recipient bed (SGPR) or (2) a nonperforated recipient bed (SGNPR), a perforated block graft was fixed on either (3) a nonperforated recipient bed (PGNPR) or (4) a cortically perforated recipient bed (PGPR). The animals were sacrificed at 1 day, 4 days, 10 days, 4 weeks, and 8 weeks after surgery. Specimens were prepared and radiographic analysis was conducted by using micro-computed tomography. The residual bone volume (RBV; mm 3), cross-sectional bone area (BA; mm 2), and residual height (RH; %) of the grafted block bone were measured radiographically. Results: The interface between the recipient bed and the graft showed no signs of bone integration at 1, 4, and 10 days of healing. However, at 4 weeks of healing, bone integration was observed in all groups. The RBV, BA, and RH of the grafts gradually decreased by 4 weeks of healing. At 8 weeks, the PGPR condition exhibited a higher RBV, BA, and RH than the other conditions, whereas the SGNPR condition exhibited the lowest RBV, BA, and RH. Conclusion: Within the limitations of this study, it can be concluded that intentional cortical perforation on the recipient bed and block bone graft may influence volume maintenance of the graft.
KW - Alveolar ridge augmentation
KW - Bone regeneration
KW - Decortication
KW - Dogs
KW - X-ray microtomography
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U2 - 10.1111/j.1600-0501.2010.02110.x
DO - 10.1111/j.1600-0501.2010.02110.x
M3 - Article
C2 - 21985287
AN - SCOPUS:80053892467
SN - 0905-7161
VL - 22
SP - 1298
EP - 1302
JO - Clinical Oral Implants Research
JF - Clinical Oral Implants Research
IS - 11
ER -