正畸用微种植钉种植成功的多因素分析  

Factors Affecting the Success Rate of Miniscrewsas Orthodontic Anchorage.

作　　者：曹小青 张莉 刘龙坤 

机构地区：[1]南昌市第三医院口腔科,江西南昌330009

出　　处：《口腔医学研究》2016年第1期79-82,共4页Journal of Oral Science Research

摘　　要：目的:探讨影响正畸支抗用微种植钉临床成功的因素。方法:选择固定正畸治疗中的种植微种植钉患者114例,微种植钉253颗。应用Logistic回归(Logistic Regression)统计方法对15个与微种植钉种植失败有关的指标(性别、年龄、垂直骨面型、矢状骨面型、植入部位、上下颌骨、软组织类型、口腔卫生状况、种植体长度和直径、植入方式、植入角度、加载时机、加载强度、临床用途)进行回归分析。结果:种植成功224颗,16例共计29颗脱落失败,种植成功率88.54%。年龄、口腔卫生情况、垂直骨面型和上下颌骨是影响微种植钉成功的独立指标(P<0.05)。结论:为了减少正畸支抗用微种植钉的失败,要对患者加强口腔卫生的宣教和监督,特别是对年轻(尤其是<12岁)的高角患者的下颌植入时。Objective： To evaluate various factors that influencing the success rate of miniscrews used as orthodon- tic anchorage. Methods： 114 patients were included with a total of 253 miniscrews. Potential confounding variables examined were gender, age, vertical （FMA） and sagittal （ANB） skeletal facial pattern, site of placement （labial and buccal, palatal and retromandibular triangle）, jaw of placement （maxilla and mandible）, soft tissue type, oral hygiene, diameter and length of miniscrews, insertion method （predrilled or drill--free）, angle of placement, onset and strength of force application and clinical purpose. The correlations between success rate and overall variables were investigated by logistic regression analysis, and the effect of each variable on the success rate was utilized by variance analysis. Results： The overall success rate was 88.54% with an average loading period of 9.5 months in successful cases. Age, oral hygiene, vertical skeletal facial pattern （FMA） and general placement sites （maxilla and mandibular） presented significant differences in success rates both by logistic regression analysis and variance analy- sis （P〈0.05）. Conclusion： To minimize the failure of miniscrews, proper oral hygiene instruction and effective su- pervision should be given for patients, especially the young （〈12 years） high--angle patients with miniscrews placed in the mandible.

关 键 词：微种植钉 正畸支抗 多因素分析 种植成功 

分 类 号：R783.6[医药卫生—口腔医学]