应用Smart clip自锁托槽矫治上颌牙列拥挤的临床研究

摘要

目的:探讨Smart clip自锁托槽矫治上颌牙列拥挤病例的牙弓变化特点.方法:选取20例上牙轻中度拥挤的患者,不拔牙矫治,使用Smart clip自锁托槽排齐牙列,在治疗前和上牙排齐时分别进行模型测量,对比分析治疗前后上颌牙弓宽度、牙弓长度及周长的变化,应用SPSS12.0统计软件分析处理数据.结果:排齐后与治疗前阶段相比,上颌牙弓长度、周长、前磨牙间宽度和第一磨牙间宽度均显著增加,尖牙间宽度和第二磨牙间宽度无显著变化.结论:应用Smart clip自锁托槽系统排齐和整平上颌轻中度拥挤牙列,上颌牙弓宽度、牙弓长度及周长均显著增大,增加不拔牙矫治可能.%Objective To clarify changes in the dental arch on Nonextraction correction of maxillary dental crowding withSmart clip self-ligating system. Methods The Smart clip self-ligating system was used in 20 patients with mild andmoderate crowding in the maxillary arch.Models of the maxillary arch were taken before treatment and at the end ofleveling and aligning phase.Width,depth and perimeter of the dental arch were measured on the pre -treatment andpost-treatment models.All data were analyzed by SPSS12.0 software. Results Compared with pre-treatment,on thepost -treatment statistically significant increases were recorded in depth,perimeter and premolar widths and the firstmolar widths.No significant changes were found in the cuspid width and the the second molar width. ConclusionDuring the initial phase of leveling and aligning, the Smart clip self-ligating system produces significant increases in thedental arch width and depth and perimeter of the maxillary arch.