J. C. Upegui-Zea, E. Echeverri-González, D. M. Ramírez-Ossa, and L. M. Restrepo-Narváez, “Determination of the prognosis in patients who presenting impacted maxillary canines in the Faculty of Dentistry of the University of Antioquia”, Rev Fac Odontol Univ Antioq, vol. 21, no. 1, pp. 75–85, Dec. 2009.