Mahnoor, M., U. Bashir, O. K. Durrani, and S. Y. Sheikh. “Effect of Two Different Oral Hygiene Motivation Methods on Gingival Health of Patients With Fixed Orthodontic Appliances”. Pakistan Orthodontic Journal, vol. 7, no. 1, Oct. 2015, pp. 17-24, https://poj.org.pk/index.php/poj/article/view/110.