Kuzhalvaimozhi P, Vignesh Ravindran, and Subhashini V C. “Gingival Health Status in Patients With And Without Anterior Crossbite: A Case Control Study”. International Journal of Research in Pharmaceutical Sciences, vol. 11, no. (SPL 3), Oct. 2020, pp. 1470-6, https://ijrps.com/home/article/view/3104.