义齿软衬下支持组织的光弹应力分析  

Photoelasticity stress analysis on supporting structures under soft denture liner

作　　者：蔡鸿丹[1,2] 赵信义[1,2] 王忠义 何惠明[1,2] 

机构地区：[1]解放军202医院口腔科 [2]第四军医大学口腔医学院

出　　处：《实用口腔医学杂志》1998年第1期60-61,共2页Journal of Practical Stomatology

摘　　要：目的：测定义齿软衬材料厚度及材料组成对支持组织应力分布的影响。方法：以环氧树脂制备表面带有骨突的模拟模型，通过测试骨突下应力条纹值，来反映模型内压力分散情况。结果：软衬厚度及材料组成对支持组织应力分布有明显影响，软衬厚度越大，其分散压力的效果越好；含２５％补强填料的软衬材料分散压力效果最好。结论：１义齿软衬材料分散压力的能力与软衬厚度有关。２含２５％补强填料的软衬材料分散压力效果最好。Objectioe: To investigate the effects of soft denture lining materials thickness and composition on the distribution of stress in supporting structures. Methods: Photoelasticity stress analysis was employed. Results: Thickness and composition of the liner materials significantly influenced the distribution of stress in supporting structures. The thicker the liner was, the better the stress distributed. The stress distribution of the soft liner containing 25% of fused silica was the best. Couclusion: 1. The stress distribution ability of soft denture liner materials relates to the thickness of the liner. 2.The soft liner containing 25% of fused silica may distribut the stress efficiently.

关 键 词：义齿 软衬材料 应力分布 光弹应力 

分 类 号：R783.6[医药卫生—口腔医学] R783.1[医药卫生—临床医学]