The aim of this study was to determine the prevalence of malocclusions through the Index of Orthodontic Treatment Need (IOTN) in Temuco, IX Region, Chile, in twenty elementary schools, with a random selection of individuals per cluster. The sample consisted of 158 students. The results showed that 82.9% had one or several anomalies in the transverse, vertical or anteroposterior axis. Of all subjects, 5.1% did not need orthodontic treatment. The need for interceptive treatment was 75.3% among the population, rest (19.6%) needed corrective treatment. The main anomalies are open bites followed by crossbites. We conclude that there is a high need for treatment in this age in the city of Temuco.
KEY WORDS: interceptive orthodontics, malocclusion.
How to cite this article
SANDOVAL, V. P.; CEBALLOS, C. M.; HECK, C. C.; CATALÁN, R. L. & GARCÍA, A. N. Determination of orthodontic treatment necessity in children with mixed dentition stage of Temuco city, IX Region, Chile. Int. J. Odontostomat., 3(2):155151, 2009.