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Temporal changes in dental caries levels and patterns in a Native American preschool population
J M Douglass1, D M O'Sullivan, N Tinanoff
1Department of Pediatric Dentistry, University of Connecticut Health Center, Farmington 06030-1610, USA. douglass@sun.uchc.edu
Objectives:
The purposes of this study were to assess current dental caries experience and levels of mutans streptococci in Apache children in 1993 and to determine how caries levels and patterns were different from 15 years before.
Methods:
Four-year-old Head Start children (n = 127) were examined for dental caries and sampled for salivary mutans streptococci in 1993. Dental caries information on 113 4-year-old children from the same location was obtained from a chart audit of the 1978-79 Head Start dental examinations.
Results:
Neither the caries prevalence (95%) nor the prevalence of caries patterns differed between the 1978-79 and 1993 cohorts. However, the level of treatment received in 1993 was greater than that in 1978-79. Children with nursing caries (64%) had a greater severity of fissure caries and a greater prevalence of posterior proximal caries compared with caries-positive children without nursing caries. The mean dmfs and dmft on the children categorized in the high mutans streptococci range were greater than those of children categorized in the moderate range.
Conclusions:
The caries prevalence found in these preschool Native Americans is among the highest reported for this age group and does not differ from that found at this location 15 years before. It appears that children with nursing caries in this population are at greater risk for posterior caries patterns.