ASSESSMENT OF THE VALIDITY, REPRODUCIBILITY AND ACCURACY OF DIGITAL MODELS OBTAINED FOR VIRTUAL SURGICAL SIMULATION IN ORTHOGNATHIC SURGERY
Orthognathic Surgery; digital model; intraoral scanning
This experimental study evaluated the accuracy of digital models generated by two scanning techniques (intraoral scanner and bench-top scanner) of an experimental model of the upper arch made of polyurethane and the plaster model obtained from this arch. Reference measurements, which the manufacturer demarcated, were performed using surgical simulation software and analyzed for validity and accuracy of the scanning techniques used in all groups (1 to 5). In the validation analysis, all techniques showed to be valid compared to the control group, except the FG measure, which showed statistically significant differences (p<0.05) between groups 1 and 2. Precision was assessed using the intraclass correlation index, and all techniques were highly accurate with an ICC close to 1. Thus, it is concluded that the intraoral scanner and the bench scanner used in this study were reliable compared to the control group and that the two scanner models used presented themselves with high precision.