Structural Mechanical Analysis and Evaluation for Extension of Teeth Lifetime
Structural Mechanical Analysis and Evaluation for Extension of Teeth Lifetime
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延长牙齿寿命的结构力学分析与评估
DOI：
10.2493/jjspe.75.418
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发表时间：
2009
影响因子：
--
通讯作者：
Hisato Sasahara
中科院分区：
文献类型：
--
作者：
T. Higashimachi;K. Suga;Hisato Sasahara
为了验证应力集中与龋病发生密切相关的假设，对牙齿和牙周组织进行了有限元结构分析。应力集中与楔状缺损、牙周病、牙槽骨隆起之间可能存在相关性。然后，对相邻牙或上下牙的接触问题进行了分析。很明显，龋齿的起源是应力集中区。该应力集中点与龋病的实际生长点相似。此外，还阐明了应力集中与磨损、裂孔龋和继发牙本质之间存在相关性。
In order to inspect our hypothesis that stress concentration is closely related to the cause of dental caries, the finite element structural analyses of tooth and periodontium were carried out. The possibility of the correlation of stress concentration and wedge-shaped defect, periodontopathy and eminence of alveolar bone became clear. Then, contact problem analysis of adjoining teeth or upper and lower teeth were carried out. It became clear that the origin of dental caries is a stress concentration zone. This stress concentration point is similar to actual growth point of caries. Furthermore, it was clarified that there was a correlation of stress concentration and attrition, fissure-pit caries and secondary dentine.