Nonlever action of the mandible.
Nonlever action of the mandible.
复制标题
下颌骨的非杠杆作用。
DOI：
10.1002/ajpa.1330700402
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发表时间：
1986
影响因子：
2.8
通讯作者：
R. M. Taylor
中科院分区：
文献类型：
--
作者：
R. M. Taylor
本研究认为目前的概念是下颌骨作为第三阶杠杆。这个概念需要一个支点，这个功能被归因于髁突区域，但往往被忽视的是，在这种情况下，三阶杠杆的支点有时必须承受相当大的应力。某些变化，归因于压力，已经在关节的解剖成分中观察到，但它们不能用杠杆概念来解释。它们是由下颌骨功能过程中工作侧和对侧解剖关系的变化所引起的。它们是由轻微的压力引起的，特别是当牙齿状况表明一段时间的功能不正常时。
This study considers the current concept of the mandible as a lever of the third order. The concept requires a fulcrum, and this function has been ascribed to the condyle region, but it tends to be overlooked that the fulcrum of a third-order lever in this case would sometimes have to bear a considerable stress. Certain changes, attributed to stress, have been observed in anatomical components of the articulation, but they cannot be explained in terms of the lever concept. They are accounted for by the changing anatomical relations in the working and contralateral sides during mandibular function. They arise from minor stress, especially when dental conditions indicate a period of abnormal function.