【摘要】 目的:评价在牙种植术中,钻备种植窝时收集到的自体骨颗粒单独或与Bio-Oss人工骨混合作为骨移植材料应用的临床效果。方法:34例52枚牙种植术的病例分成四组。第一组(对照组)22枚植体,单纯植入种植体,种植区无植入自体骨或人工骨。第二组6枚植体,植入螺纹种植体后,在部分暴露的植体处植入Bio-Oss人工骨。第三组8枚植体,收集种植术中准备植体窝时,在各种钻针上的自体骨颗粒,植入种植体周骨量不足区域。第四组16枚植体,自各种钻针上收集到的自体骨颗粒与Bio-Oss人工骨混合,植入种植体周骨缺损区。记录I、II期手术种植体周围骨组织高度。结果:植入术后3-12个月,II期手术时,实验组有新生骨形成,第四组(即Bio-Oss人工骨与自体骨颗粒混合物植入组),新生骨形成的量较其余组别多。结论:研究表明牙种植术中钻备种植窝时收集到的自体骨颗粒可作为有效的植骨材料,这种简单的方法避免从他处手术获得自体骨,对扩大牙种植适应症有重要意义。RRRR更多还原

【Abstract】 Objective: To evaluate the effectiveness of autogenous bone particles harvested from dental implant socket preparation with drills when used alone or in combination with a proprietory allograft material, Bio-Oss . Methods: 52 implants placed in 34 patients were divided into 4 groups. Group 1: 22 implant were insert in alveolar bone after implant socket preparation without bone grafting. Group 2: Bio-Oss was used as a defect restoring material around the exposed screws of 6 screw-type implants. Group 3: The autogenous graft particles were placed in the bone deficient area around 8 screw-type implants. Group 4: Bio-Oss and the autogenous bone particles mixture were placed in the bone deficient area around 16 implants. Measured the height of bone ridge around the implants in I or II stage operation. Results: New bone formation were observed at stage II operation performed at 3~12 months after stage I operation in the experimental group. More bone formation was observed in Group 4( the Bio-Oss and autogenous bone mixture) . Conclusions: This study demonstrates the effectiveness of using bone particles obtained from implant socket drilling in bone formation around implants. This application avoids be need of a separate autogenous bone harvesting procedure which is not without surgical risks.The simplicity of this bone grafting method is significant to the expansion of the clinical applica-tions of dental implant更多还原