"An Evaluation of the Changes in the Free Gingiva after Orthodontic Movement of the Upper Ectopic Canines". Journal of Hama University , [S. l.], v. 4, n. 19, 2022. Disponível em: https://journal.hama-univ.edu.sy/huj/article/view/827. Acesso em: 6 jun. 2026.