เลาหกุล กมล. “The Study of Oral cleanness Between Tooth brushing and Tooth pick plaque scaling”. Thai Dental Public Health Journal 13, no. 2 (April 30, 2008): 86–96. accessed September 19, 2026. https://he02.tci-thaijo.org/index.php/ThDPHJo/article/view/209841.