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有关下颌的生长及组织学的变化已有不少论著,但在使用矫形及正畸的矫正器时,对下颌形态结构的变化及颅面结构的作用的论述则甚少。作者利用弹性照相材料、技术,对使用口外颏兜的下颌施以矫形力时,在方向、大小、位置三相进行研究。文献复习: 矫形力的使用并非是最近的新概念。
Many studies have been published on the changes of mandibular growth and histology. However, there are few reports on the changes of mandibular morphology and craniofacial structures when orthopedic and orthodontic appliances are used. The use of flexible photographic materials, technology, the use of mandibular chin mandibular orthopedic force applied in the direction, size, location of the three-phase study. Literature review: The use of orthopedic force is not a recent new concept.