Effect of Manufacturing Technique on the Accuracy of Guides for Static Computer-Aided Implant Surgery

Abstract

Purpose:This study aimed to evaluate the effect of different surgical guide manufacturing techniques on the accuracy of the surgical guides produced prior to implant placement. Materials and Methods: Three type of guides were compared: milled guides using a commercial milling unit (C-Mill), printed guides using a commercial 3D printer (C-Print), and printed guides using a benchtop printer (B-Print). All the guides were fabricated on a single maxillary model for anterior implant and posterior implant placement. Ten guides were produced for each group. Four accuracy variables were measured: (1) internal accuracy, (2) vertical fit, (3) guide seating distortion, and (4) drilling access horizonta..