牙种植手术中自体骨的收集和应用

Application of autogenic bone collection with a designed instrument in dental implantation

目的:研究牙种植过程中,收集自体骨即刻移植修复种植体周围小型骨缺损的临床疗效。方法:2003年10月至2005年10月,选择14例牙种植患者,植入25颗种植体时发生17处骨缺损,其中开窗式骨缺损9处,颊(舌)侧种植体颈部暴露8处。在牙种植窝制备过程中,应用自制的集骨器收集随冷却水流出的骨屑,并将其即刻移植或与Bio-oss混合后移植修复骨缺损。结果:牙种植术后3-6个月,原缺损处局部形态饱满,X线片示种植体与周围牙槽骨形成良好的骨结合,二期手术时见缺损处已覆盖成熟骨质,移植骨成活良好。结论:应用自制集骨器获得的收集骨修复种植体周围小型骨缺损,方法简单实用。

Objective： To study the clinical effect ofperi-implant bone augmentation with collected bone chips harvested with a designed appliance in dental implantation. Methods： 14 patients from Oct 2003 to Oct 2005 were recruited in the study.17 defects occurred while 25 dental implants were installed, which consisted of 9 fenestrated bone defects and 8 buccal （or lingual） exposures of the neck. A designed instrument was used in the implant osteotom to harvest bone debris and the defects were reconstructed with the collected bone simultaneously. Results： Three to six months after the surgery, the defects were successfully augmented, and the X-ray showed that all the dental implants had perfect osteointergration. In the second surgical stage, bone growth was found over the defects of all cases. Conclusion： Bone debris harvested in dental implant bed prepared with our instrument could repair small peri-implant bone defects,which is practical and simple in chinic.