Clinical evaluation of three occlusal registration methods for guided closure contacts

This clinical study compared two occlusal registration methods (Occlusal Indicator Wax and Accufilm) with the T-Scan system for the identification of guided closure contacts. The patients were divided into two groups according to the centric relation-maximum intercuspation (CR-MIP) discrepancy and comparisons of guided closure contacts were performed with the paired methods. Wax and Accufilm materials were significantly different in their agreement on guided closure contacts. The T-Scan system demonstrated less of a disparity with both methods but more closely resembled the Occlusal Indicator Wax material. The CR-MIP slide also significantly affected the agreement between methods during identification of guided closure contacts.