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  • Title: Three-year root caries incidence and risk modeling in older adults in North Carolina.
    Author: Lawrence HP, Hunt RJ, Beck JD.
    Journal: J Public Health Dent; 1995; 55(2):69-78. PubMed ID: 7643330.
    Abstract:
    OBJECTIVES: The purposes of this study were to describe the incidence of root caries and to identify its risk factors in a representative sample of older adults. METHODS: Root caries incidence was estimated and multivariate risk assessment models were developed to identify predictors for root caries in a three-year follow-up study of 234 black and 218 white noninstitutionalized adults aged 65 and older residing in North Carolina. RESULTS: During the observation period, 29 percent of blacks developed root caries, compared to 39 percent of whites (P < .05). The mean net DFS increment per person was 0.55 +/- 0.13 root surfaces for blacks vs 0.80 +/- 0.21 for whites (P > .32). Multivariate logistic regression analysis indicated that blacks wearing a partial denture, having some root fragments, having an average gingival recession > or = 2 mm, and being free of P. intermedia were at greater risk for developing new root caries. The model for whites showed that retired people with their most severe gingival recession > or = 4 mm, an average probing pocket depth > or = 2 mm, and taking antihistamines were more likely to develop new lesions. CONCLUSIONS: These findings suggest that older blacks had less risk of root caries than whites, and in both groups indicators of poor periodontal status increased the risk of root caries.
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