RESUMENObjetivo: Determinar la prevalencia de caries y factores asociados con historia de caries y autopercepción de salud oral de escolares de 12 años de establecimientos educacionales municipalizados, comparando población urbana y rural en la Región del Maule, Chile. Material y Método: Estudio transversal en una muestra por conveniencia de 285 escolares de cuatro comunas de la Región. El examen clínico fue realizado por un examinador calibrado. Se midieron variables demográficas, índice COPD, Índice de higiene oral, autopercepción del estado de salud oral y última visita al dentista. Resultados: La prevalencia de caries fue 63.9%, sin diferencias significativa por sexo y área residencia. Los niños tienen 3.17 (95% IC 1.62-6.20) veces más riesgo de tener un COPD=0 en relación a las niñas; la higiene oral también se asoció a un COPD=0 (OR=0.24 95% IC 0.10-0.57). La higiene oral se asoció al área de residencia y nivel socioeconómico (NSE); los jóvenes urbanos tienen 5.6 veces más riesgo de tener una higiene óptima (95% IC 2.68-11.95) que los rurales y los jóvenes de NSE medio y bajo están protegidos de tener una higiene óptima (OR= 0.17 95% IC 0.04-0.66). La autopercepción de salud oral no se asoció a las variables estudiadas. Conclusiones: Los niños de establecimientos rurales presentaron los peores indicadores de salud oral. Los resultados evidencian inequidades de salud de los adolescentes de 12 años de los establecimientos educacionales municipalizados estudiados que ameritan el diseño de estrategias promocionales y preventivas acorde a sus necesidades. Rev. Clin. Periodoncia Implantol. Rehabil. Oral Vol. 4(3); 117-121, 2011.Palabras clave: Salud bucal, higiene bucal, caries dental, salud urbana, salud rural. ABSTRACTAim: To determine caries prevalence and risk factor associated to caries experience and oral health self perception in 12 year-old school children. The study makes comparisons between urban and rural children of Maule Region, Chile. Subjets and Methods: Cross sectional study in a convenience sample of 285 school children from four counties. Oral examinations were carried out by one calibrated clinician. Demographic variables, DMFT index, oral hygiene index, oral health self perception were measured, as well as the last visit to the dentist. Results: Caries prevalence was 63.9%. No statistical difference was found based on gender and residence area. Boys had 3.17 (95% IC 1.62-6.20) times more risk to have a DMFT = 0 than girls. Oral hygiene was also associated to DMFT=0 (OR=0.24 95% IC 0.10-0.57). Oral hygiene was associated to residence area and socioeconomic status. Urban boys were 5.6 times more at risk to have an optimal hygiene than rural boys (95% IC 2.68-11.95). Children from low and medium socioeconomic status were prevented to have an optimal hygiene (OR= 0.17 95% IC 0.04-0.66). Oral health self perception was not associated to any studied variable. Conclusion: Rural school children had the worst oral health indicators. These results show oral health inequities in 12 year-old school child...
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