[Prevalence of risk factor for intoxications and poisoning at home related to socioeconomic level]. [Nivel socioeconómico y factores de riesgo en niños para envenenamiento e intoxicación en el hogar.]

To identify the prevalence of caries in affiliated children and teenagers at Instituto Mexicano del Seguro Social (IMSS). The survey was carried out according to the World Health Organization indexes. The studied was carried out in 1545 boys and girls aged three, five, six, and twelve years and selected by stratified random sampling in seven places of Mexican Republic (Guanajuato, East and West Estado de México, Northwest 1, Northeast 2, Southwest 3, and Southeast 4 DF). The prevalence of caries was 66.9%. Rates were higher in temporary dentition than in permanent teeth (p