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Updated: Jul 23, 2026

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清晰对齐器在前牙收缩期间在提取空间区域具有不同的形状设计的生物机械效应

Bochun Mao1, Yajing Tian2, Yujia Xiao1

  • 1Department of Orthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing, China.

Orthodontics & craniofacial research
|April 23, 2024
PubMed
概括

清晰的对齐器形状设计在空间关闭时会影响牙的运动. 修改清晰对齐器与提取空间 (CAES) 高度可以增强前牙收缩和控制根部运动在正牙治疗.

关键词:
清晰的对齐器对齐器清晰的对齐器提取处理 提取处理有限元分析是有限元分析.波尼斯的波尼斯 (Pontic) 是一个

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Mechanical Efficiency of Real Machines01:14

Mechanical Efficiency of Real Machines

The mechanical efficiency of a machine is a fundamental concept that describes how effectively a machine can convert input work into output work. According to this concept, the efficiency of a machine is equal to the ratio of the output work to the input work. An ideal machine, meaning a machine that has no energy losses, has an efficiency of one. This implies that the input work and the output work are equal.
However, in reality, no machine can be truly ideal, and all of them experience some...