Abstract
We developed a new replica method using a new type of trial-manufactured resin(Kuraray, Japan).Although many replica methods for evaluating the surface texture of intra-oral restorations have been reported, almost all methods are involved two steps.However, this new method involves one step.The advantages of this method are simplicity of handling and time saving.The disadvantage is that it is a negative replica and therefore a reverse image.To address this issue, a two step method was also developed.We tried to investigate the reproducibility of form and size of these methods by SEM observation while measuring surface roughness. As compared with the conventional method, the results were as follows.1.All three methods showed similar size reproducibility.2.According to SEM observation, this new one step method had good form reproducibility.3.This new one step method was useful for evaluating the texture of intra-oral restorations.
