A dental caries survey of 2,445 Mexican children, 6 to 15 years of age, was conducted in an industrial city. The children were divided into three socioeconomic groups. The pattern of the caries attack rate conformed to all caries surveys. However, the DMFT and DMFS scores increased as the socioeconomic levels increased. The higher socioeconomic groups presented evidence of more dental care than the low group.
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