Fig. 4From: Mobile educational tool based on augmented reality technology for tooth carving: results of a prospective cohort studyImage markers. These photographs show the image markers used in this study, which are recognized by the camera of the mobile device according to the type of tooth (number in each circle). a: Mandibular first molar; b: mandibular first premolar; c: maxillary first molar; d: maxillary canineBack to article page