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

摘要

Hypothesis: There are no statistically significant mean differences in global deviations when comparing 3D digital dental models generated by the Dental Monitoring(TM) (DM(TM)) application in video mode with the 3D digital dental models generated by the iTeroRTM Element(TM) intraoral scanner over successive DM(TM) video exams. Objective: To compare the accuracy and reliability of stereolithography (STL) files generated from the DM(TM) application in video mode to STL files generated from the iTero RTM Element(TM) intraoral scanner over successive DM(TM) 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 RTM aligners. Initial digital scans with the iTeroRTM along with DM(TM) exams in video mode were performed before tooth movement and after each set of InvisalignRTM aligners for each typodont. 3D image STL files generated from the DM(TM) exams in video mode were superimposed with the STL files from the iTeroRTM using GOM Inspect(TM). Results: Statistically significant mean differences were found between the 3D models generated by the iTeroRTM and the DM(TM) application in video mode over successive DM(TM) 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(TM) application in video mode are reliable. However, reliability decreases over successive DM(TM) video exams.