标准前括号放置与微笑弧保护方法的有效性比较:一项随机临床试验
Fahimeh Farzanegan1, Alireza Ghasemzadeh1, Mahsa Ghorbani1
1Dental Research Center, Orthodontics Department, Mashhad University of Medical Sciences, Mashhad, Iran.
Journal of the World federation of orthodontists
|March 12, 2025
概括
微笑弧保护 (SAP) 方法显著改善了与标准支架定位相比,在正牙患者中微笑弧显著改善. 一般牙医认为SAP组的微笑更有吸引力,尽管整体形态变化相似.
科学领域:
- 矯正牙科 矯正牙科是一種矯正牙科.
- 牙科的美学 牙科的美学
- 临床研究 临床研究
背景情况:
- ортодонтическое治疗旨在改善功能和美学.
- 微笑弧,微笑美学的一个关键组成部分,是指前牙的切口边缘和下唇的曲率之间的关系.
- 评估用于优化微笑弧的新技术在正牙科中至关重要.
研究的目的:
- 为了比较微笑弧保护 (SAP) 方法与标准前支架定位的有效性.
- 评估闭塞和微笑形态指数以及治疗后感知到的微笑美学.
主要方法:
- 一个随机的双臂并行试验,涉及42名患者 (11-25岁) 接受非提取性正牙治疗.
- 患者被分配到SAP或标准支架放置组,使用罗斯0.018系统.
- 结果包括脑力测量,研究模型和 Occlusal 和微笑形态测量的摄影分析,以及美学视觉模拟尺度 (VAS).
主要成果:
- 在SAP和标准组之间,在整体封闭和微笑形态学变量中没有发现显著差异.
- 与标准方法和预处理状态相比,SAP方法导致微笑弧显著改善 (P = 0.005).
- 一般牙医认为SAP组的微笑显著更有吸引力 (P = 0.002),而正牙医和非专业人士在VAS得分上没有显著差异.
结论:
- 在实现辅音微笑弧方面,SAP方法比传统的支架定位更有效.
- 虽然其他形态变化没有显著差异,但SAP方法对一般牙医的美学感知产生了积极的影响.
- 建议进行进一步的研究以验证这些发现并探索长期影响.
相关概念视频
Blind Procedures
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Blinding
Blinding is a commonly used method of not telling participants which treatment a subject is receiving. Blinding is a critical part of a randomized control trial or RCT. It reduces the bias that affects the results. In an RCT, blinding is used in the form of a placebo. A placebo effect occurs when untreated subjects falsely believe they have received the treatment and report improved symptoms. A placebo or a dummy treatment is administered to subjects to negate the bias caused by such an effect.


