自攻微螺钉两种不同植入术式成功率的比较研究  

Comparison of success rate of the self-drilling microscrews placed by self-drilling or pre-drilling techniques

作　　者：舒广[1] 唐志辉[1] 

机构地区：[1]北京大学口腔医院·口腔医学院第二门诊部,100101

出　　处：《中华口腔正畸学杂志》2010年第1期30-33,共4页Chinese Journal of Orthodontics

摘　　要：目的 比较自攻微螺钉自攻植入和助攻植入的成功率,分析相关影响因素,探讨两种植入术式适应征.方法 选择117例需要双侧植人种植支抗的正畸患者,采用自身左右对照,共植入272颗自攻微螺钉,自攻术式和助攻术式各植入136颗,通过X^2检验或精确概率法检验评价两种术式成功率的差异,并通过多元回归分析探讨使用不同术式、性别、年龄、垂直骨型、植入部位（上颌或下颌）等因素及其组合对微螺钉成功率的影响.结果 272颗微螺钉总成功率为86%.自攻术式植入成功率为85.3%,助攻术式成功率为86.8%.两者没有统计学差异.二者之间影响成功率的因素存在差异：影响助攻植入成功率的因素为垂直骨型和植入部位的组合,高角患者上颌部位成功率低;影响自攻植入成功率的因素为植入部位、年龄和垂直骨型的交互作用,非高角骨型的成人患者和下颌部位自攻植入成功率低.结论 对于自攻微螺钉,多数情况下可以常规使用自攻植入,尤其在高角患者上颌部位相对于助攻植入有明显优势;但成人非高角患者以及下颌部位使用助攻植入则有助于提高成功率.Objective To compare the success rates of the self-drilling miniscrews placed by self-drilling or pre-drilling techniques. Methods 272 miniscrews placed by self-drilling or pre-drilling in 117 orthodontic patients were included. Chi-square tests and multiple logistic regression analyses were performed to compare the success rates and possible influencing factors. Results The overall success rate was 86%. The success rates of miniscrews placed by self-drilling and pre-drilling techniques were 85. 3% and 86. 8%, respectively. The difference did not reach statistical significance.Multiple logistic regression analyses revealed that the factor influencing the success rate of pre-drilling technique was the combination of implant position and skeletal pattern, while the factors influencing the success rate of self-drilling technique were both the implant position and the combination of age and skeletal pattern of the patient. Conclusions Self-drilling technique is preferred in most situations,especially for maxillary miniscrew placements for high angle patients, however, for adult low angle patients or for mandibular miniscrew placements, pre-drilling technique is preferred.

关 键 词：自攻微螺钉 成功率 自攻植入 助攻植入 

分 类 号：R783.5[医药卫生—口腔医学]