Evaluation of the effect of non bracket invisible orthodontic appliance combined with anchorage nail in the treatment of Class III malocclusion of bone
无托槽隐形矫治器结合支抗钉治疗骨性Ⅲ类错牙合的效果评价

摘要

目的 对骨性Ⅲ类错牙合患者中施以无托槽隐形矫治器结合支抗钉治疗方式的价值进行明确，旨在推动骨性Ⅲ类错牙合治疗研究发展。方法 以2022年2月至2025年2月期间院内临床综合诊断为骨性Ⅲ类错牙合的40例患者作为试验观察对象，试验分组按照随机数字表法进行，包括对照组（20例）、观察组（20例），不同小组治疗模式分别以单一无托槽隐形矫治器治疗手段、无托槽隐形矫治器结合支抗钉手段开展，分析两组疗效。结果 经组间数据比较，对比的对象之间结果P<0.05，表现出显著差异，疗效方面表示观察组更佳；治疗中与治疗后对比的对象之间结果P<0.05，表现出显著差异，牙近远中距离和角度、颊舌向距离和角度、垂直向移动距离和角度方面表示观察组均更佳，治疗后对比的对象之间结果P<0.05，表现出显著差异，牙根长度方面表示观察组更长。结论 于骨性Ⅲ类错牙合中施以无托槽隐形矫治器结合支抗钉治疗方式，对提高疗效有着重要意义，可改善牙近远中距离和角度、颊舌向距离和角度、垂直向移动距离和角度与牙根长度。

Abstract

Objective To clarify the value of using non bracket invisible orthodontic appliances combined with anchorage nails in the treatment of Class III malocclusion, with the aim of promoting the research and development of treatment for Class III malocclusion.
Methods A total of 40 patients diagnosed with Class III malocclusion clinically in the hospital between February 2022 and February 2025 were selected as the experimental observation subjects. The experimental groups were randomly divided into a control group (20 cases) and an observation group (20 cases). The treatment modes of different groups were carried out using a single non bracket invisible orthodontic appliance or a combination of non bracket invisible orthodontic appliance and anchorage nail. The efficacy of the two groups was analyzed.
Results The results of the inter group data comparison showed a significant difference (P<0.05) among the compared subjects, indicating that the observation group had better therapeutic effects; The results between the subjects compared during and after treatment showed significant differences (P<0.05), with the observation group showing better distances and angles in the mesial and distal directions of teeth, buccal and lingual directions, and vertical movement distances and angles. The results between the subjects compared after treatment showed significant differences (P<0.05), with the observation group showing longer root lengths.
Conclusion   The use of non bracket invisible orthodontic appliances combined with anchorage nails in the treatment of Class III malocclusion is of great significance in improving the therapeutic effect. It can improve the distance and angle between the teeth in the mesial and distal directions, the distance and angle between the buccal and lingual directions, the vertical movement distance and angle, and the length of the tooth root.