Forghani, N. “The Impact of Chewing Gums on the Plaque Index in the Lack of Oral Hygiene Measures in Patients Referred to a Private Dental Clinic”. Asian Journal of Dental Sciences, Vol. 3, no. 2, May 2020, pp. 8-14, https://journalajds.com/index.php/AJDS/article/view/30110.