摘要
目的探讨口腔固定矫治中造成托槽脱落的相关原因分析。方法选取2005-2009年我院正畸科固定矫治病例200例,男100例,女100例,粘贴方丝弓托槽3650个,根据托槽脱落的情况作半年到一年的追踪观察,并分析其原因。结果通过统计学分析,1年托槽脱位率为16.55%;其中下颌第二双尖牙脱落率最高,尖牙脱落率最低,同名牙下颌高于上颌,后牙高于前牙。结论托槽的脱落与多种因素有关,其中粘贴时间及牙位均会影响正畸托槽的脱落。临床上了解这些因素采取相应防范措施减少托槽的脱落,提高固定矫治质量。
Aim To discuss the related factors causing bracket bond failure in fixed appliance. Methods 200 patients（100 males and 100 females） who applied fixed orthodontic appliance in our hospital from 2005 to 2009 were selected.3650 orthodontic brackets used in them were observed for 6-12 months. The failure factors in different conditions were analyzed. Results By statistics analysis, the rate of bond failure was 16.53% in the first year after bonding. The failure rate of bonded brackets of the mandibular second premolar was the highest, and which of the cuspid teeth was the lowest.The mandibular teeth and posterior teeth had higher failure rate than the maxillary teeth and the anterior teeth,respectively.There were no significant difference between the left side and the right side in general.Conclusion The failure rates of bonded brackets related to a lot of factors.The location and the time are among the related factors for the bond failure.We should know them clearly in order to reduce the rates of unbonded brackets and make the orthodontic treatment successful.
出处
《泰州职业技术学院学报》
2010年第1期32-34,共3页
Journal of Taizhou Polytechnic College
关键词
托槽
脱落
相关原因
bracket
bond failure
factors
