Terminal plane and dental arch form in temporal dentition correlated to angle class malocclusion in permanent dentition
Abstract
The study objective was to establish the correlation between dental arch form and molar terminal plane in temporal dentition with angle class malocclusion in 5-year-old children who attended in the Hospital Nacional “Daniel Alcides Carrión” at Cerro de Pasco, 2010 - 2011. The research used a prospective, longitudinal descriptive design. The sample consisted of 40 children chosen by a nonprobability sampling. For a start, a clinical evaluation of the dental arch form and molar terminal plane in temporal dentition was performed. Then, after the first permanent molars erupted, a correlation with malocclusion angle classes was observed; the statistical treatment hypothesis was done with Chi Square. Results indicated a significant statistical difference to assume that molar terminal plane and dental arch form in temporal dentition is correlated with malocclusion angle classes, considering 12,724 X2c => X2T = 9,488 (4GL-95 %), rejecting the Ho. Concluding, the straight terminal plane and open dental arch form in temporal dentition is associated with increased frequency of normoclusion and Class I malocclusion. While the mesial step terminal plane type and closed dental arch form in temporal dentition is related to Class III malocclusion.
References
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