Takayama Y, Takakuda K, Miyairi H
Shika Zairyo Kikai. 1989 Nov;8(6):803-11.
Deformation of the anterior teeth and palatal regions on upper complete dentures was investigated using the photoelastic coating method and strain gages. In this experiment, an uniform-moment bending load method was employed to simulate the occlusal situation, and the distribution of strain in epoxy resin, stainless swaged and Co-Cr alloy cast dentures were measured and analyzed. The 030-series reflection polariscope is compact and lightweight with its main components consisting of two polarizer/quarter-wave-plate assemblies attached to a common frame. The highest level of strain was seen in the anterior region of the palate and the low strain was observed in other regions. Differences in strain magnitude of the three dentures were not observed with test at the same point. But, when denture base materials with high flexural rigidity and bending strength were used on the palatal region of the denture base, strain was decreased in the anterior and other regions of the palate. Therefore, dentures using those materials could be effectively reinforced.
采用光弹性涂层法和应变片对全口义齿上前牙和腭部区域的变形进行了研究。在本实验中，采用均布弯矩弯曲加载法模拟咬合情况，测量并分析了环氧树脂、不锈钢锻造和钴铬合金铸造义齿中应变的分布。030系列反射式偏光镜结构紧凑、重量轻，其主要部件由安装在一个公共框架上的两个偏振器/四分之一波片组件组成。腭前部区域的应变水平最高，其他区域的应变较低。在同一点进行测试时，未观察到三种义齿应变大小的差异。但是，当在义齿基托的腭部区域使用具有高抗弯刚度和抗弯强度的义齿基托材料时，腭前部和其他区域的应变会降低。因此，使用这些材料的义齿可以得到有效增强。
