EVALUATION OF NEW RESTORATIVE MATERIAL

本研究的目的是评价一种新的修复混合型修复材料（EXL 324），并将其磨损特性与Z100（3M公司）进行比较。目前在牙科市场上可获得的修复材料，具有良好的磨损数据。 10个Z100预备体和12个实验材料随机放置在6个M的后牙中。食蟹猴 在一个月时对两种材料进行临床评估，并在当时取印模，以测量直接发生在修复牙齿的塑料模型上的磨损量。 在双盲研究中，由两名评价者通过解剖显微镜观察来评价模型的磨损。 将每三个月对材料进行进一步评价，此后每隔六个月进行一次评价。 一年后，在实验材料EXL 325上观察到一些磨损，但磨损仍然可用。

The purpose of this investigation is to evaluate a new restorative hybrid type restorative material (EXL 324) and to compare its wear characteristics with Z100 (3M Co.) Restorative material presently available in the dental market and having well characterized wear data. Ten Z100 restorations and twelve experimental materials were randomly placed in the posterior teeth of six M. fascicularis monkeys. The two materials were clinically evaluated at one month and impressions taken at that time to measure the amount of wear that had occurred directly on the plastic casts of the restored teeth. The casts are evaluated for wear by two evaluators by viewing through a dissecting microscope in a double blind study. Further evaluations of the materials will be made at three months and at six monthly intervals thereafter. Some wear was noted on the experimental materials EXL 325 after one year but restorations were still serviceable.