Comportamiento de las anomalías dentomaxilofaciales en ni？os de 9 a 14 a？os

dentomaxillofacial anomalies include growing alterations, development and the physiology of the anatomical components that constitute the stomatognathic system. a descriptive, cross-sectional study was conducted with 150 children from 9 to 14 years old of the schools attending at "antonio briones montoto" dentist clinic in pinar del rio, during january 2008-july 2009. the study was aimed at identifying the prevalence of dentomaxillofacial anomalies regarding chosen variables and the behavior according to individual past pathologies. the sample was taken using a stratified, at random, and proportional to the stratus size sampling. children were examined in their classrooms, with natural light and using lingual depressor. the information was collected in a database by means of microsoft excel, processing it by the statistical program of statistical package for the social science, version 10.0 to windows. a comparison of proportions of independent groups was performed with the purpose of determining the most significant variables of prevalence and chi-square test in its variance of independence to verify the relation among the chosen categories. dental anomalies were the most prevalent anomalies. male sex and the age bracket of 9-11 prevailed. among the etiological factors studied, the habits were the most frequent followed by physical agents; observing a high prevalence of dental anomalies in close relation to deforming habits.