Space Closure Rate in Mandibular Canine Retraction by Ni-Ti Closed Coil Spring: A Clinical Trial. Medicine Today, [S. l.], v. 33, n. 2, p. 90–93, 2021. DOI: 10.3329/medtoday.v33i2.56050. Disponível em: https://www.banglajol.info/index.php/MEDTODAY/article/view/56050. Acesso em: 24 jun. 2026.