ISIEKWE, D. I. .; MO, A. . Comparison of Three Horizontal Reference Planes in the Cephalometric Assessment of Upper Incisor Angulation in an Adult Nigerian Population. West African Journal of Orthodontics, [S. l.], v. 7, n. 2, p. 21–28, 2022. Disponível em: https://wajo.oauife.edu.ng/index.php/wajo/article/view/150. Acesso em: 11 may. 2026.