Luengrojjanakul, Pirun, Polbhat Tripuwabhrut, Prachya Kongtewelert, Siriwan Ongchai, and Dhirawat Jotikasthira. “Comparisons of the Chondroitin Sulphate Levels and the Amount of Pain During Initial Orthodontic Leveling Phase Between Passive Self-Ligating and Conventional Bracket Systems”. Thai Journal of Orthodontics 9, no. 2 (September 14, 2020): 4–14. Accessed May 19, 2024. https://he01.tci-thaijo.org/index.php/THAIORTHO/article/view/249531.