 The clinical study investigator will evaluate the labialbuccal surfaces of upper and lower anterior teeth first bicuspid to first bicuspid for white spot lesions WSL at baseline and at the end of 3, 6, and 12 months. Newly formed lesions and changes in existing white spot lesions will be documented using Enamel Decalcification Index EDI, ICDAS II, light digital photographs and blue fluorescence photography SOPROLIFE and QLF- Quantitative Light Fluorescence. 