Nonlinear finite element analysis of maxillary molar vibration
Nonlinear finite element analysis of maxillary molar vibration
复制标题
上颌磨牙振动的非线性有限元分析
DOI：
10.1179/143307511x12858956846599
复制
发表时间：
2011-02
影响因子：
--
通讯作者：
Li, B.
中科院分区：
文献类型：
--
作者：
Xin, H. T.;Li, Y. L.;Guo, W. G.;Li, B.
摘要根据人牙周膜(PDL)的非线性特性，用有限元方法研究了上颌磨牙的振动。同时观察牙槽骨丢失对牙体振动的影响，以评价牙周组织的状况。利用CT图像重建技术建立上颌磨牙的三维有限元模型，在牙周膜附着处施加弹性面基约束。采用有限元方法对其进行了模态分析。用分段线性化方法研究了PDL的非线性行为。结果表明，上颌磨牙的振动可以用多种振型和频率来描述。前四种模式占主导地位，随着PDL变形的不同而不同。牙齿的振动频率随着牙槽骨的丧失而降低，但其降低的比例与人牙周膜的非线性行为无明显相关性。牙齿的振动频率可以用来描述在生理短期载荷作用下牙槽骨的丢失情况。
Abstract The vibration of a maxillary molar was studied using the finite element method according to nonlinear behaviour of the human periodontal ligament (PDL). The effect of alveolar bone loss to the vibration of the tooth was also investigated to assess the condition of periodontium. Three‐dimensional finite element model of a maxillary molar was constructed using CT image reconstruction, and the elastic face foundation constraint was applied to the place where the PDL was attached to. Modal analysis was performed using the finite element method. The nonlinear behaviour of the PDL was approached by the piecewise linearised method. The results indicated that the vibration of the maxillary molar could be described by several modal frequencies and modes. The first four modes were dominant, which varied with the deformation of the PDL. The vibration frequency of the tooth decreased with the losing of the alveolar bone, but the ratio of decreasing had no significant correlation with the nonlinear behaviour of the human PDL. The vibration frequency of the tooth can be used to describe the loss of the alveolar bone, under physiological short‐term loading.
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影响因子：
3.2
作者：
H. Xin;Yulong Li;Lingcheng Zhao;W. Guo
通讯作者：
H. Xin;Yulong Li;Lingcheng Zhao;W. Guo
DOI：
10.1016/j.ajodo.2006.01.046
发表时间：
2008-04-01
影响因子：
3
作者：
Nishimura, Makoto;Chiba, Mirei;Mitani, Hideo
通讯作者：
Mitani, Hideo
影响因子：
2.4
作者：
Pini, M;Zysset, P;Contro, R
通讯作者：
Contro, R
DOI：
10.1080/10255840290032117
发表时间：
2002-04-01
影响因子：
1.6
作者：
Pietrzak, G;Curnier, A;Belser, U
通讯作者：
Belser, U
影响因子：
2.5
作者：
Kojima, Yukio;Fukui, Hisao
通讯作者：
Fukui, Hisao