AZAM, S.; SHAHNAWAZ, A.; QURESHI, B. Validity of esthetic proportions in maxillary anterior teeth. Pakistan Orthodontic Journal, [S. l.], v. 6, n. 1, p. 7–11, 2014. Disponível em: https://poj.org.pk/index.php/poj/article/view/89. Acesso em: 30 apr. 2026.