在III类骨缺陷中补偿治疗后,软和硬组织的变化
Lijuan Liu1, Yuting Liu1, Kai Guo2
1Department of Orthodontics, Weifang People's Hospital, Shandong Second Medical University, Weifang, Shandong Province, China.
PloS one
|May 7, 2025
概括
对骨III类缺陷的正牙治疗进行比较,前牙提取和下第三用临时固定装置 (TADs) 提取均产生了积极的结果. 前肢提取组在下切肢位置和Sella-Nasion-B点角方面表现出更显著的变化.
科学领域:
- 矯正牙科 矯正牙科是一種矯正牙科.
- 牙科手术 牙科手术
- 面外科手术 面外科手术
背景情况:
- 骨III类恶性闭塞的治疗可能涉及前或下第三骨的提取.
- 将所有四种第二前拔除与下第三拔除与临时定装置 (TADs) 的比较对于补偿性正牙治疗至关重要.
研究的目的:
- 为了比较四个第二前提取与下三提取与TADs在治疗轻度至中度的III类骨缺陷的有效性.
主要方法:
- 一项回顾性观察性研究包括31名骨III类缺陷的受试者.
- 在治疗前和治疗后,分析了侧面脑图,以检测牙,骨和软组织的指标.
- 统计分析比较了两个治疗组之间的脑电测量测量.
主要成果:
- 两组都显示出改善的患者形状和中性闭合关系.
- 前肢提取组显示下切口角 (IMPA,L1-NB) 显著减少,上下切口角 (U1-L1) 增加.
- 在前提取组观察到SNB角度的显著下降,而下第三提取组显示出闭合平面角度 (OP-SN) 的减少.
结论:
- 使用TADs进行前提取和下第三提取都有效治疗轻度至中度的III类骨缺陷.
- 前鼻抽取导致了较大的SNB角度变化和较低的切口舌头倾斜.
- 第3骨的提取导致了与时钟针相反的闭合平面运动,在两组中都有类似的软组织改善.
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