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Table 1 Scores and criteria followed for the subjective evaluation of the WSLs

From: Effects of various remineralizing agents on the outcome of post-orthodontic white spot lesions (WSLs): a clinical trial

Scores Criteria
0 No visible white spot or surface disruption (no decalcification)
1 Visible white spot without surface disruption (mild decalcification)
2 Visible white spot lesion having a roughened surface but not requiring restoration (moderate decalcification)
3 Visible white spot lesion requiring restoration (severe decalcification)