评估青少年患者的固定和扭矩控制,在3种器件中对II类第1部分缺陷进行了评估
Huanhuan Chen1, Guangying Song1, Yi Fan2
1Department of Orthodontics, Cranial-Facial Growth and Development Center, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory for Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry, Ministry of Health, Beijing, China.
概括
与Roth和PASS系统相比,Tweed边向装置提供了优越的骨 anchorage控制. 通过器件有效地利用生理 anchorage 控制,而支架设计影响扭矩控制差异.
科学领域:
- 矯正牙科 矯正牙科是一種矯正牙科.
- 生物材料科学 生物材料科学
- 牙科机械 牙科机械
背景情况:
- ортодонтика治疗的目的是纠正缺陷,固定和扭矩控制是成功结果的关键因素.
- 对比不同的设备系统对于优化处理效率和可预测性至关重要.
- 角度 II 级 1 级缺陷常常需要在上进行显著的定管理.
研究的目的:
- 为了比较Tweed边向,Roth和Physiological AnchorageSpee-wire系统 (PASS) 设备之间的固定和扭矩控制差异.
- 评估不同的正牙器件在管理尾 anchorage和切口位置方面的有效性.
主要方法:
- 一个由90名患有Angle Class II Division 1缺陷和最大固定需求的青少年患者组成的样本被分为三组 (每种器械类型30组).
- 治疗前和治疗后的横向脑图和3D数字模型被叠加起来以分析变化.
- 评估的关键变量包括位移位,切口收缩和扭矩变化.
主要成果:
- 在这三个组之间没有发现显著的基线差异.
- 图伊德边向器件证明了对大第一个骨质位移的优越控制和更大的切口 retraction.
- 通过使用生理 anchorage,PASS设备显示有效的骨 anchorage控制,而扭矩控制根据支架设计而变化.
结论:
- 与Roth和PASS系统相比,Tweed边向装置在骨 anchorage控制方面表现出色.
- 通过生理 anchorage PASS 设备提供足够的骨 anchorage 控制,提供辅助设备的替代方案.
- 牙医应该考虑PASS系统的固有固定潜力以及支架设计对扭矩控制的影响.
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