MARGINAL FIT OF CERAMIC ONLAYS USING A NEW IMPRESSION MATERIAL

这个子项目是利用由NIH/NCRR资助的中心拨款提供的资源的许多研究子项目之一。子项目和调查员(PI)可能从另一个NIH来源获得了主要资金，因此可能会出现在其他CRISE条目中。列出的机构是针对中心的，而不一定是针对调查员的机构。这项研究将比较一种新型PVS印模材料与一种商用PVS印模材料和一种商品级表面活性剂的准确性。将准备牙齿，制作印模，用每种PVS印模材料制作陶瓷嵌体修复体，并尝试修复。每个修复体的边缘适合性将通过全球显微镜和数字图像程序进行评估。对修复体适合性的评估将用于确定印模材料的准确性。此外，还将收集关于这两种印象材料的详细复制的数据。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. This study will compare the accuracy of a new PVS impression material with an improved surfactant compared to a commercially available PVS impression material with a commercial grade surfactant. Teeth will be prepared, impressions made, ceramic onlay restorations fabricated from each PVS impression material and the restoration tried in. The marginal fit of each restoration will be assessed with the Global microscope and a digital image program. The assessment of the fit of the restoration will be used to determine the accuracy of the impression material. In addition data will be collected on the detail reproduction of both impression materials.