口腔疾病防治2017，Vol.25Issue(2)：105-109,5.DOI:10.12016/j.issn.2096-1456.2017.02.008
两种自锁托槽对非拔牙病例牙弓变化影响的对比研究
Comparative study on the influence of two kinds of different self-locking brackets on the dental arch shape change in non-extraction patients
摘要
Abstract
Objective By analyzing changes of dental arch width and length during the aligning and leveling period (non⁃extraction case) with two kinds of self⁃locking bracket, compare the difference between the active self⁃locking bracket with the passive bracket. Methods The data of dental arch perimeter change amount and dental arch width and length change amount (WU/L3, WU/L4, WU/L5, WU/L6, U/LL) were statistically analyzed using the correlation and regression method by comparing active and passive brackets for the correction of dental arch variations. Two different brackets for the correction of the measured values of the dental arch variations was analyzed by t⁃test. Results There were statistical relationships between the amount of arch perimeter increase and the amount of width and length in⁃crease. The regression equation was statistically significant (P < 0.05), It was greater impacted arch width increase to arch perimeter in the self⁃locking. The t⁃test results showed WU3, WL3, WL6, LR 4 measured values (P<0.05) statisti⁃cally significant in the active self⁃locking group and passive group. Conclusion Active and passive self⁃locking brack⁃et have good arch expansion effecting. The active self⁃locking bracket is slightly dominant than the passive bracket in the expansion of the canine width whereas the active self⁃locking bracket is better than the passive in the expansion of the mandibular first molar and arch perimeter which should be widely applied to the appropriate cases.关键词
自锁托槽/牙弓宽度与长度/牙弓周长/扩弓/尖牙Key words
Self-locking bracket/Arch width and length/Arch perimeter/Arch expansion/Canine分类
医药卫生引用本文复制引用
刘爱青,陈造,张继东,袁强..两种自锁托槽对非拔牙病例牙弓变化影响的对比研究[J].口腔疾病防治,2017,25(2):105-109,5.基金项目
内蒙古包头市卫生基金项目（Wsjj2012068）；内蒙古自治区社会发展科技支撑项目 （）
