Dental caries in Mexican schoolchildren: a comparison of 1988-1989 and 1998-2001 surveys.

Objectives: To compare two surveys across seven states for the prevalence of dental caries among Mexican schoolchildren.

Study Design: Analysis of two cross-sectional surveys: Schoolchildren from 6 to 10 years of age were examined in the 1988-1989 survey and 6- to 10-year-old and 12-year-old students were included in the 1998-2001 survey. The baseline data of seven states were available for analysis.