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正常及异常牙周膜在不同载荷作用下应力分布的研究——应用三维有限元计算
Authors
何明元
周书敏
张延宏
Publication date
1 January 1990
Publisher
Abstract
本文应用三维有限元研究了正常及异常牙周膜在不同载荷作用下的应力分布,得到牙周膜的应力分布规律。(1)通过牙体生理中心(几何中心)的力,应力分布最均匀,以压应力为主,对牙周膜有利;(2)其它类型的力均可使牙周膜受力不均匀,以与牙长轴呈90°角的侧向力危害严重,可同时产生较大的压应力和拉应力;(3)牙周膜内应力值随牙槽骨高度降低而增高,尤以根尖区和牙槽嵴顶区变化剧烈;(4)外力方向、作用点位置对异常牙周膜应力值有明显影响
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Institute Of Mechanics,Chinese Academy of Sciences
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Last time updated on 12/02/2018