Fig. 1From: A newly developed kit for dental apical root resorption detection: efficacy and acceptabilityDifference in colour intensity formed by samples of different severity of root resorption: (A) control group (RO), (B) mild group (RM), (C) severe group (RS). The first well of the plate is the negative control well, the middle 2 wells are the sample wells, and the last well is the positive control wellBack to article page