早期与晚期双间弹性在II类缺陷症患者:一个随机临床试验
The Angle orthodontist
|September 27, 2025
概括
在II类恶性闭塞患者中,早期使用II类弹性可显著减少治疗持续时间. 这种方法在平整和对齐牙方面比较有效,以达到I类口腔堵塞,而不是晚期弹性使用.
科学领域:
- 矯正牙科 矯正牙科是一種矯正牙科.
- 牙面部整形外科 牙面部整形外科
背景情况:
- 二级恶性塞是一种常见的牙科问题,需要 ортодонтической干预.
- 应用II类弹性的时间是治疗效率的一个关键因素.
研究的目的:
- 为了比较II类弹性的早期和晚期应用的疗效和治疗持续时间.
- 为了评估弹性定时对牙,骨和软组织变化的影响,在II类恶性闭塞患者.
主要方法:
- 40名II类坏闭症患者被随机分为早期和晚期弹性群体.
- 弹性从设备放置 (早期) 或在弧线插入后 (晚期) 应用.
- 脑图和照片在治疗前和治疗后进行分析,以评估结果.
主要成果:
- 早期和晚期的弹性群体都显示出大中央切口的逆向倾斜和闭合平面的顺时针旋转.
- 在早期弹性组中,实现I类口腔封闭的治疗持续时间明显较短.
- 对于大多数骨和软组织测量,除了MP/SN和PP/SN角度之外,没有观察到群体之间的显著差异.
结论:
- 无论应用时间如何,II类弹性弹性都同样有效.
- 早期应用II类弹性纤维更有效,减少整体处理时间.
- 早期的组需要显著更少的时间来平衡,对齐,并实现一级I口腔闭塞.
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