Obi, Applonia Leu, Ratih Variani, and M Ayatullah. “The Effect of Anterior Crowding Toward Oral Hygiene Index-Simplified and Gingival Index Score”. Jurnal Ilmu dan Teknologi Kesehatan 10, no. 2 (March 31, 2023): 207-219. Accessed December 22, 2024. https://poltekkesjakarta3.ac.id/ejurnalnew/index.php/jitek/article/view/1035.