BETANCUR-P., J. J.; CARVAJAL-F., Álvaro; JARAMILLO-V., P. M.; GARCÍA-B., J.; MADRIGAL-M., N.; LOPERA-A., M. Comparative study of the clinical effect produced by the first Class® and the pendulum in patients trated at the College of Dentistry, University of Antioquia: a radiographic and model analysis. Revista Facultad de Odontología Universidad de Antioquia, [S. l.], v. 18, n. 2, p. 29–44, 2009. DOI: 10.17533/udea.rfo.2760. Disponível em: https://revistas.udea.edu.co/index.php/odont/article/view/2760. Acesso em: 5 apr. 2025.