Fig. 13From: Digital registration versus cone-beam computed tomography for evaluating implant position: a prospective cohort studyOn the cross-sectional plane determined by the long axis and the gingival zenith of the adjacent tooth, the purple line segments represented the contour of the adjacent teeth obtained from CBCT scans. While the other line represented the contour of the crown obtained from IOS. Since the 2D deviation of corresponding points all fell within ± 0.3 mm, the crown contour was in greenBack to article page