自锁托槽与传统托槽正畸初戴疼痛的对比分析

摘要

目的 比较成人初戴自锁托槽与传统直丝弓托槽矫治器后疼痛情况,研究自锁托槽能否减轻患者初期疼痛.方法 62例正畸患者,随机分为2组,smart clip自锁托槽组和MBT传统直丝弓托槽组,分别戴上矫治器,发调查问卷,记录放置0.34mmNiTi弓丝后7d内的正畸疼痛程度的变化情况,采用视觉模拟评分方法(VAS法)对其结果进行分析.结果 2组矫治器配戴后均有疼痛,高峰期处于放置首根弓丝后的1～2d之间,随后疼痛逐渐减轻,7d后大多数患者已无明显疼痛症状,两者之间差异无统计学意义(P＞0.05),但它们的疼痛强度差异有统计学意义(P＜0.05),自锁托槽组明显弱于传统组.结论 使用自锁托槽可在一定程度上减轻患者的疼痛感.%Objective To investigate whether the self-ligating brackets could alleviate the initial pain of patients.Methods 62 orthodontic patients were divided into 2 groups (smart clip self-ligating brackets and conventional straight wire bracket).After wearing appliance and 0.34mm NiTi wire questionnaires for 7 days,were sent to record the change of pain degree.The visual analogue scale method (VAS method) was used to analyze the results.Results Both two groups felt pain and the peak period was between first and second days after the first wire.Then the pain gradually reduced and after 7 days,most patients did not feel pain,and there was no significant difference between two groups (P ＞ 0.05).But the degree of pain appeared significantly different (P ＜ 0.01),and the self-ligating brackets group was obviously less than conventional straight wire bracket group.Conclusion Self-ligating brackets could reduce the pain in a certain degree.