High precision prediction of bone tissue changes by occlusal force

通过咬合力高精度预测骨组织变化

• 批准号: 20390487
• 负责人: UOSHIMA Katsumi
• 金额: $ 9.4万
• 依托单位: Niigata University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20390487/
• 关键词: 歯科補綴学一般; 歯学; 骨改造; 咬合力; 有限要素法

The purpose of this study was to establish a simulation model to predict bone tissue changes by occlusal force by means of 3-D finite element analysis. We established rat implant occlusion model first. Then, we used micro CT to have digital data of 3-D structure of the implant with surrounding bone tissue. Using 3-D finite element analysis program, we applied occlusal force to the implant and seek some correlation between the force distributions and bone tissue changes investigated by histological sections. As a result, we found that there were some correlations between those and it was shown that the bone tissue changes upon occlusal loading could be predicted by 3-D finite element analysis. The precision should be verified by further investigation yet.

本研究的目的是建立一个模拟模型，通过 3D 有限元分析来预测咬合力引起的骨组织变化。我们首先建立了大鼠种植牙咬合模型。然后，我们使用显微 CT 获取种植体及其周围骨组织的 3D 结构的数字数据。使用 3-D 有限元分析程序，我们对种植体施加咬合力，并寻求力分布与组织学切片研究的骨组织变化之间的某些相关性。结果，我们发现它们之间存在一些相关性，并且表明咬合载荷引起的骨组织变化可以通过 3-D 有限元分析来预测。其精度尚待进一步调查验证。

项目成果

Towards the establishment of a 3-D finite element model to investigate stress distribution around an implant under excessive load in a rat model : Optimal implant location and dimensions

建立 3-D 有限元模型来研究大鼠模型中过度负载下植入物周围的应力分布：最佳植入物位置和尺寸

• 发表时间: 2011
• 期刊: REVISTA ROMANA DE STOMATOLOGIE
• 作者: Ryohei Takano;Roxana Stegaroiu;Masako Nagasawa;Katsumi Uoshima
• 通讯作者: Katsumi Uoshima

Towards the establishment of a 3-D finite element model to investigate stress distribution around an implant under excessive load in a rat model : Optimal implant location and dimensions.

建立 3-D 有限元模型来研究大鼠模型中过度负载下植入物周围的应力分布：最佳植入物位置和尺寸。

• 发表时间: 2011
• 期刊: REVISTA ROMANA DE STOMATOLOGIE-VOLUMUL LVII, NR. 1
• 作者: Ryohei Takano;Roxana Stegaroiu;Masako Nagasawa;Katsumi Uoshima
• 通讯作者: Katsumi Uoshima

Influence of implant installation on apical bone formation in rat maxilla

种植体安装对大鼠上颌骨根尖骨形成的影响

• 发表时间: 2011
• 作者: Takano R;Nagasawa M;Nozawa M;Stegaroiu;R;Uoshima K
• 通讯作者: Uoshima K

Influence of implant installation on apical bone formation in ratmaxilla

种植体安装对大鼠上颌骨根尖骨形成的影响

• 发表时间: 2011
• 作者: Takano R;Nagasawa M;Nozawa M;Stegaroiu;R;Uoshima K
• 通讯作者: Uoshima K

Histrogical Investigation on the Bone Surrounding Dental Implant upon Occlusal Load Using a Novel Rat Model

使用新型大鼠模型对牙种植体周围骨在咬合负荷下的组织学研究

• 发表时间: 2010
• 作者: Masako Nagasawa;Katsumi Uoshima;Maeda takeyasu
• 通讯作者: Maeda takeyasu