CAJ | 학술논문

建立包括第一、二前磨牙及牙周膜、骨皮质和骨松质的三维有限元模型，将微型种植体植入两颗牙齿之间的牙槽骨中，当微植体负载时，周围组织会产生额外的应力，改变微植体位置和角度能影响到邻近牙齿牙周膜的应力变化。当微植体向第二前磨牙移动时，第二前磨牙牙周膜应力按比例增加，第一前磨牙牙周膜应力按比例减小。当微植体向第一前磨牙倾斜时，第一前磨牙牙周膜应力增加，第二前磨牙牙周膜应力相应减小。
건립포괄제일、이전마아급아주막、골피질화골송질적삼유유한원모형，장미형충식체식입량과아치지간적아조골중，당미식체부재시，주위조직회산생액외적응력，개변미식체위치화각도능영향도린근아치아주막적응력변화。당미식체향제이전마아이동시，제이전마아아주막응력안비례증가，제일전마아아주막응력안비례감소。당미식체향제일전마아경사시，제일전마아아주막응력증가，제이전마아아주막응력상응감소。
Establish the dimensional finite element model,including the lower first and second premolars,alveolar bone and periodontal menbrane. A miniscrew was inserted between the lower first and second premolars. Changes in the position or angulation of a miniscrew could affect the stress in the socket walls of the adjacent teeth. This stress increased proportionally in the second premolar socket as the miniscrew was moved towards the second premolar and declined when the miniscrew was tipped towards the first premolar.