Fig. 2From: Does endodontics influence radiological detection of external root resorption? an in vitro studyIllustration of endodontic tooth no.1 and non-endodontic tooth no.2 on DPR images. a Stage 1, teeth without resorption. b Stage 2, teeth with ERR of 0.12Â mm. c Stage 3, teeth with ERR of 0.18Â mm. d Stage 4, teeth with ERR of 0.20Â mmBack to article page