Shinya Akikazu, Lassila Lippo V J, Vallittu Pekka K, Shinya Akiyoshi
Department of Prosthetic Dentistry & Biomaterial Science, Institute of Dentistry, University of Turku, Turku, Finland.
Eur J Prosthodont Restor Dent. 2009 Jun;17(2):78-84.
This study investigated the effects of two types of loading conditions on mechanical behavior of the pontic of composite fixed partial denture (C-FPD) and fiber reinforced composite fixed partial denture (FRC-FPD). Two types of FE model of posterior bridge were developed. Two types of loading conditions, i.e. vertical 629 N, and lateral of 250 N, were used. In lateral load, displacement was showed a similar behaviours. However in vertical load, displacement of FRC-FPD was less than C-FPD. These results clarified the magnitude, distribution of stress and displacement generated in C-FPD and FRC-FPD of pontic caused by two different loading conditions.
本研究调查了两种加载条件对复合固定局部义齿（C-FPD）和纤维增强复合固定局部义齿（FRC-FPD）桥体力学行为的影响。建立了两种类型的后桥有限元模型。采用了两种加载条件，即垂直629 N和横向250 N。在横向加载时，位移表现出相似的行为。然而在垂直加载时，FRC-FPD的位移小于C-FPD。这些结果阐明了两种不同加载条件下C-FPD和FRC-FPD桥体中产生的应力和位移的大小及分布。
