Reliability of Dental Monitoring™ 3D Digital Dental Models Using Video Mode

Hypothesis: There are no statistically significant mean differences in global deviations when comparing 3D digital dental models generated by the Dental Monitoring™ (DM™) application in video mode with the 3D digital dental models generated by the iTero® Element™ intraoral scanner over successive DM™ video exams. Objective: To compare the accuracy and reliability of stereolithography (STL) files generated from the DM™ application in video mode to STL files generated from the iTero® Element™ intraoral scanner over successive DM™ exams. Methods: Ten typodonts were each set up as class I malocclusion with anterior crowding and resolved with ten sets of upper and lower Invisalign® aligners. Initial digital scans with the iTero® along with DM™ exams in video mode were performed before tooth movement and after each set of Invisalign® aligners for each typodont. 3D image STL files generated from the DM™ exams in video mode were superimposed with the STL files from the iTero® using GOM Inspect™. Results: Statistically significant mean differences were found between the 3D models generated by the iTero® and the DM™ application in video mode over successive DM™ exams. No clinical significant differences were found based on the American Board of Orthodontics (ABO) standards of 0.5 mm clinical significance. Conclusions: 3D digital dental models generated by the DM™ application in video mode are reliable. However, reliability decreases over successive DM™ video exams.