Objectives: To describe for a diverse sample of dentate middle–aged and older adults: (1) the 24–month incidence of coronal caries, and (2) its association with a broad range of clinical, behavioral, financial, attitudinal, and sociodemographic factors. Methods: The Florida Dental Care Study is a prospective observational longitudinal cohort study of 873 persons who at baseline had at least 1 tooth and were 45 years or older. In–person interviews and clinical examinations were conducted at baseline and 24 months, with 6–monthly telephone interviews between those times. A multinomial logistic regression was done to predict whether a participant was in one of four mutually exclusive groups at the 24–month examination (new decay only [NDO]; new filling(s) only [NFO]; both new decay and filling(s) [BOTH]; or neither [NONE]). Results: Only 33% of the 24–month participants were in the NONE group. There was no significant difference in caries incidence between regular attenders and problem–oriented attenders, regardless of whether teeth crowned at baseline, incident crowns, or incident root fragments were excluded. However, once differences in incident tooth loss and baseline clinical, behavioral, financial, and attitudinal differences were taken into account, regular attenders did appear to benefit by developing fewer coronal lesions and fewer dental symptoms than problem–oriented attenders. Baseline carious surfaces, filled surfaces, number of teeth, and bulk restoration fractures predicted caries incidence, but baseline cusp fractures did not. Persons with negative dental attitudes were more likely to be in the NDO and BOTH groups, and negative attitude toward brushing and flossing (but not their frequency) also predicted caries incidence. Conclusion: Certain baseline clinical conditions, approach to dental care, ability to pay for dental care, dental attitudes, race, and age group were predictive of coronal caries incidence, and regular attenders appeared to benefit from regular attendance.

Keywords:
Caries incidence, Caries incidence, longitudinal studies, Dental care, Dental care, attitudes, Dental care, race, Dental caries
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2000
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