Fig. 1
From: Comparison of two intraoral scanners based on three-dimensional surface analysis
Registration of the three-dimensional models created by iTero (yellow) and TRIOS (red). a Initial registration by three corresponding points on each of the two models. b Automatic fine registration for final registration. c Computation of average deviations between the two intraoral scans at all points on the surfaces. d Color-coded charts for qualitative evaluation