Accuracy of an open-tray implant impression technique with 3 splinting materials: an in vitro study.

This study compared the accuracy of impressions using 3 types of splinting materials: a pattern acrylic resin (Group 1), an acrylic resin (Group 2), and a dual-cured composite resin (Group 3). A total of 60 impressions (n = 20) were made. Implant positions were compared against the master model using a coordinate measuring machine with ANOVA comparison (P = 0.