Y. R. Al-Laban, “Comparison of enamel color alteration between bonded and free unbonded surfaces of maxillary anterior teeth after fixed orthodontic therapy (A prospective clinical study) ”, J Bagh Coll Dent, vol. 27, no. 3, pp. 174–178, Sep. 2015, Accessed: May 06, 2024. [Online]. Available: https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/826