The Influence of Hard- and Software Improvement of Intraoral Scanners on the Implant Transfer Accuracy from 2012 to 2021: An In Vitro Study

This study aimed to investigate the transfer accuracy (trueness and precision) of three different intraoral scanning families using hardware software versions over last decade from 2012 2021, compared a conventional impression. Therefore, an implant master model with reference cube was digitized served as dataset. Digital impressions all (True definition, TRIOS, CEREC) were recorded (n = 10 per group), taken 10). The models digitized, (conventional digital) measured. it possible obtain deviations between scans or in terms absolute three-dimensional (3D) deviations, rotation, angulation. results for older newer systems analyzed pairwise comparisons (p < 0.05; SPSS 26). 3D increased increasing scan path length, particularly (old vs. new (MW ± SD) True Definition: 355 62 µm 483 110 µm; TRIOS: 574 274 258 100 CEREC: 1356 1023 49 µm). also true rotation impression showed advantage only regarding deviation systems. Based on data present study, scanners is decisively related software; though, do not necessarily warrant improvement. Nevertheless, achieve high accuracy, regular updating digital recommended. challenge errors paths overcome most recent combination two principles single device seems be beneficial.