2种不同类型自锁托槽对前牙转矩控制的对比研究

›› 2018, Vol. 38 ›› Issue (8): 699-703.

2种不同类型自锁托槽对前牙转矩控制的对比研究

何冬梅¹,季骏²,朱菲¹,王天丛²

1. 南京大学医学院附属口腔医院
2. 南京大学医学院附属口腔医院南京市口腔医院

收稿日期:2017-12-06 修回日期:2018-02-02 出版日期:2018-08-28 发布日期:2018-08-20
通讯作者: 何冬梅 E-mail:dochdm@hotmail.com

A comparative study of torque control of anterior teeth by two kinds of self-ligating brackets

Received:2017-12-06 Revised:2018-02-02 Online:2018-08-28 Published:2018-08-20

摘要/Abstract

摘要： 摘要：目的比较主动和被动自锁托槽在拔牙病例中对前牙转矩的控制方法选取40例拔牙病例，20例应用Empower自锁托槽，20例应用Damon自锁托槽，对治疗前后反应骨性指标的SNA、SNB、ANB、MP-SN和上下前牙倾斜度的牙性指标：UI-SN、U1-PP、U1-NA、L1-NB、L1-MP进行头影测量分析，应用SPSS13.0软件对治疗前后测量的结果进行分析。结果两组病例治疗前各项测量项目无明显差别；两组病例治疗前后骨性指标无明显改变，而牙性指标UI-SN、U1-PP、U1-NA、L1-NB、L1-MP都有明显减小；Empower组病例治疗后UI-SN、U1-PP、U1-NA测量值较Damon组大，有显著性差异(P<0.05)，而Empower组L1-MP治疗后测量值较Damon组小，结果有显著性差异(P<0.05)，Empower组L1-NB治疗后测量值较Damon组小，但无明显统计学差别(P>0.05)。结论主动自锁托槽在拔牙病例中对前牙转矩的控制较被动自锁托槽理想。

关键词: 主动自锁托槽, 被动自锁托槽, 转矩

Abstract: Abstract Objective: To investigate if there are any significant differences in torque control of the upper and lower anterior teeth of patients treated with active and passive self-ligating brackets. Methods: Forty patients treated using Empower or Damon self-ligating brackets (20 Empower and 20 Damon) were selected . SNA，SNB,ANB,MP-SN and inclination of incisors before and after treatment in the 2 groups were analyzed by cephalometrics. The changes of cephalometric measurements were analyzed by spss13.0 software.Results: There were no significant differences of cephalometric measurements between the 2 groups before treatment. There were no significant differences of SNA,SNB,ANB,MP-SN before and after treatment in the 2 groups .Inclination of incisors after treatment were less than pretherapy in the 2 groups . Inclination of upper incisors after treatment in Empower group were bigger than Damon group.The angle of L1-MP after treatment in Empower group was less than Damon group. The angle of L1-NB after treatment in Empower group was less than Damon group, but no significant difference.Conclusion: The torque capacity of active self ligating brackets were better than passive self-ligating brackets.

Key words: active selfligating brackets, passive selfligating brackets, torque

中图分类号:

R783.5

何冬梅季骏朱菲王天丛. 2种不同类型自锁托槽对前牙转矩控制的对比研究[J]. , 2018, 38(8): 699-703.

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