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Original Article

Analysis of the malocclusion of a sample of 4,047 orthodontic patients from the Community of Madrid

2009, Volumen 39, Número 2
Patricia Arrieta, Margarita Varela Morales
Instructora del Programa de Ortodoncia de la Fundación Jiménez Díaz. Madrid

Aim: To analyze the skeletal and dental characteristics of the malocclusion of an orthodontic population of the Community of Madrid. Subjects and methods: The sample consisted of 4,047 patients, children and adults of both sexes, who had been studied at the Department of Orthodontics of the Fundación Jiménez Díaz, Madrid. The analysis of dental casts and Ricketts cephalometry were used to diagnose their malocclusion. Results: Skeletal disorders: 54% of the subjects showed a skeletal anteroposterior orthognatic relationship, 28% Class II, most often secondary to a mandibular etiology (hypoplasia or retrognacia), and 18% Class III, more frequently of maxillary cause (hypoplasia). 64% of the subjects were normodivergent, 19,4% hyperdivergent and 16,6% hypodivergent. 50,4% showed palatal constriction. Dental malocclusions: 40,1% of the subjects had Class I and 40,8% Class II; 43,3% showed increased overbite and 18,1% decreased overbite. 29,3% had some form of cross bite and 0,2% scissors bite  (Rev Esp Ortod. 2009;39(2):067-074)

Key words:
Epidemiología. Prevalence. Malocclusion.
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