Sunny, ., Vipin Agarwal, Sonali Agarwal, and Rohit Ranjan. “Effects of Bristle Hardness & Duration of Manual Tooth Brushing on Plaque Control”. Indian Journal of Community Health 29, no. 1 (March 31, 2017): 123–128. Accessed April 24, 2024. https://iapsmupuk.org/journal/index.php/IJCH/article/view/732.