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The Relationship between Clinical Tooth Status and Receipt of Sealants among Child Medicaid Recipients

Department of Epidemiology, Johns Hopkins University School of Hygiene and Public Health, Baltimore, Maryland 21205, USA

R.G. Rozier

Department of Health Policy and Administration, University of North Carolina School of Public Health, Chapel Hill, North Carolina, USA

J.A. Weintraub

Department of Dental Public Health and Hygiene, UCSF School of Dentistry, San Francisco, California, USA

G.G. Koch

Department of Biostatistics, University of North Carolina School of Public Health, Chapel Hill, North Carolina, USA

This study investigated the association between caries status and sealant need at a prior survey and subsequent sealant use in a Medicaid program. Clinical data from a 1986-87 statewide epidemiological survey (N = 8026) representative of North Carolina (NC) schoolchildren (grades K-12) were linked with all NC Medicaid dental claims submitted during 1987-92, yielding 570 children in the survey who had at least one dental visit during 1987-1992. From the 570, 390 children were included: 71 who received sealants (S) and 319 who received non-sealant care (NS). Children were excluded based on age, having pre-existing sealants, or having no sealant-eligible molars or premolars. S and NS were compared on baseline dfs, DMFS, and sealant need, controlling for the patient's age, number of visits, and the provider's propensity to seal. At all ages, NS was twice as likely to have had prior dfs or DMFS (OR = 2.04, 95% CI = 1.15, 3.70). The association between sealant receipt and prior sealant need varied by age. At 6 to 11 years, S and NS had equal likelihood of sealant need (OR = 1.41, 95% CI = 0.62, 3.18). At 12 to 15 years, NS had a greater likelihood of sealant need (OR = 6.82, 95% CI = 1.60, 29.08). Caries-free status was associated with subsequent sealant receipt. Prior sealant need caused variability in dentists' decisions, depending on the child's age and past caries experience. Sealants were used infrequently by most providers and for a minority of patients. These findings are important for the Medicaid program and for future non-randomized studies of sealant effectiveness.

Key Words: sealants • Medicaid • dentists' decisions

Journal of Dental Research, Vol. 76, No. 12, 1862-1868 (1997)
DOI: 10.1177/00220345970760120901


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