Becker Kathrin, Drescher Dieter, Hönscheid Ralf, Golubovic Vladimir, Mihatovic Ilja, Schwarz Frank
Department of Oral Surgery, Universitätsklinikum Düsseldorf, Düsseldorf, Germany.
Department of Orthodontics, Universitätsklinikum Düsseldorf, Düsseldorf, Germany.
Clin Oral Implants Res. 2017 Mar;28(3):334-340. doi: 10.1111/clr.12803. Epub 2016 Mar 29.
To assess biomechanical, micro-computed tomographic (micro CT) and immunohistochemical characteristics of early osseous integration at titanium implants placed following lateral ridge augmentation using autogenous extracted tooth roots.
MATERIAL & METHODS: The roots of healthy maxillary premolars (PM) and retromolar cortical autogenous bone (AB) blocks were used for lateral ridge augmentation at chronic-type defects in the lower quadrants of n = 16 foxhounds. At 12 weeks, titanium implants were inserted and left to heal for another 3 weeks. Osteocalcin (OC) antigen reactivity, removal torque values (RT) and the bone volume per tissue volume (micro CT- BV/TV) along the implants were assessed.
Median OC (PM: 6.71 vs. AB: 2.73%), RT (PM: 61.97 vs. AB: 44.8 Ncm) and BV/TV (PM: 0.34 vs. AB: 0.21) values were comparable in both PM and AB groups.
PM and AB grafted sites equally supported the early stages of osseointegration.
评估使用自体拔除牙根进行侧方牙槽嵴增高术后植入的钛种植体早期骨结合的生物力学、显微计算机断层扫描（显微CT）和免疫组织化学特征。
将健康上颌前磨牙（PM）牙根和磨牙后皮质自体骨（AB）块用于n = 16只猎狐犬下颌象限慢性型缺损的侧方牙槽嵴增高。12周时，植入钛种植体并再愈合3周。评估沿种植体的骨钙素（OC）抗原反应性、去除扭矩值（RT）和每组织体积骨体积（显微CT - BV/TV）。
PM组和AB组的OC中位数（PM：6.71% 对 AB：2.73%）、RT（PM：61.97 Ncm 对 AB：44.8 Ncm）和BV/TV（PM：0.34 对 AB：0.21）值具有可比性。
PM和AB移植部位同样支持早期骨结合。
