Cruz López, M.F., Gutiérrez Rojo, M.F., Gutiérrez Rojo, J.F. y Rojas García, A.R. 2017. Comparison between the ICON index and the esthetic component of the IOTN to determine the need for orthodontic treatment. Revista Mexicana de Ortodoncia. 5, 1 (abr. 2017). DOI:https://doi.org/10.1016/j.rmo.2017.03.029.