Evaluation of the accuracy of CAD/CAM crowns fabricated using CT images

Abstract

In this study, from the standpoint of prevention of infection for dental technicians, we show the fabrication methods of crowns without impressions and dental model. We showed fabrication method of CAD/CAM crown using CAD data, and investigated the accuracy of the crowns. The discrepancies between the dies and crowns ranged from 50–95 mm at the margin and 15–40 mm at the shoulder in crowns fabricated from CT images of an abutment tooth. This present study showed a clinical utility of CAD/CAM crown that fabricated using CT images.