INTRODUCTION - The purpose of this in-vivo study is to compare & determine the accuracy of dental measurements calculated on physical models & digital models with the measurements taken directly from the patients’ mouth.
MATERIALS AND METHOD - This study was performed on 40 subjects. Forty maxillary impressions were made using a condensation silicone putty material and made as physical model. Digital Vernier Caliper was utilized to take direct measurements from patient’s mouth as well as from the physical models. CS 3600® was employed for direct intra-oral scanning for subject’s dentition and generating the digital model. 3D reverse engineering software was used to make measurements on the digital model. One-way ANOVA test was used to determine the accuracy between control group, physical models and virtual group. Tukey’s post-hoc analysis was done to compare between individual group.
RESULTS - There were no statistically significant differences between the physical models and virtual models as compared to those measurements taken directly from the mouth.
CONCLUSIONS - The results of the present study indicate that the intraoral scans are clinically acceptable for diagnosis and treatment planning in dentistry and offers a professional valid alternative to use of conventional plaster models.