title: Caries preventive effect of a fluoride-containing varnish (Duraphat) after 1 year's study.
abstract: The caries prophylactic effect of semi-annual applications of a fluoride-containing varnish (Duraphat) was tested in 121 15-year-old children. The children were divided into a test (60 subjects). The teeth of the children in the test group were coated with fluoride varnish at the beginning of the experimental period and again 6 months later. A clinical and radiographic examination of all children was performed immediately prior to the first application of varnish and 1 year later. The mean caries increment was 0.9 new DMFS in the test group and 4.0 in the control group. The difference was statistically significant at the 0.1% level. The caries prophylactic effect on different tooth surfaces was statistically significant both on proximal and on occlusal surfaces at the 0.1% level. Analyzing the material with respect to the caries prophylactic effect against the background of caries prevalence at the start of the investigation showed a better effect in the group of children with low and medium initial DMFS values.
mesh_terms: D000293:Adolescent; D003731:Dental Caries / Q000517:prevention & control*; D005260:Female; D005460:Fluorides, Topical / Q000627:therapeutic use*; D006801:Humans; D008297:Male; D013997:Time Factors
chemical_list: D005460:Fluorides, Topical