Noor-ul-Ain Qazi, Amna Bilal, Fatima Siraj, Shahwar Siddiq, Hafsa Gul, Madiha Riasat. “Periodontal Disease Risk Factors Assessment in Association With Frequency of Tooth Brushing”. Pakistan Journal of Medical & Health Sciences 16, no. 10 (November 22, 2022): 213. Accessed April 23, 2026. https://mail.pjmhsonline.com/pjmhs/article/view/3023.