title: Approximal caries development in adolescents with low to moderate caries risk after different 3-year school-based supervised fluoride mouth rinsing programmes.
abstract: The aim was to evaluate a 3-year randomised controlled trial of school-based fluoride mouth rinsing (FMR) on approximal caries development in 13- to 16-year-olds with low to moderate caries risk. The adolescents used F toothpaste at home and underwent prophylactic treatment at yearly check-ups at public dental clinics. Out of 788 randomly selected 13-year-olds, 622 completed the trial, carried out in 1999-2003. Supervised by a dental nurse, the subjects rinsed with a 0.2% NaF solution at different intervals. Group 1 rinsed their teeth on the first three schooldays every semester; group 2 on the first three and the last three schooldays every semester; group 3 on three consecutive days once a month during semesters; group 4 once every fortnight during semesters, and group 5 (control) did not rinse. Radiographic recording of approximal caries was performed. FMR on the three first and the three last schooldays every semester (group 2) had a prevented fraction of 59%, with approximal enamel lesions as a diagnostic threshold. Corresponding figures for groups 1, 3 and 4 were 30, 47 and 41%, respectively. The control group differed statistically from groups 2-4 for new enamel and dentin lesions and fillings (p < 0.01). Enamel lesions constituted more than 90% of the new caries lesions. Caries progression was low for all groups and no significant differences were found between groups. The main conclusion from this randomised controlled trial is that school-based FMR, as a supplement to the daily use of F toothpaste, reduces caries incidence on approximal surfaces in adolescents with low to moderate caries risk.
authors.affiliation: Department of Preventive Dental Care, Vastra Gotaland Region, Goteborg, Sweden.
authors.forename: Ulla
authors.initials: U
authors.lastname: Moberg Sköld
authors.forename: Dowen
authors.initials: D
authors.lastname: Birkhed
authors.forename: Eva
authors.initials: E
authors.lastname: Borg
authors.forename: Lars G
authors.initials: LG
authors.lastname: Petersson
mesh_terms: D000293:Adolescent; D000704:Analysis of Variance; D002327:Cariostatic Agents / Q000008:administration & dosage*; D003731:Dental Caries / Q000453:epidemiology* / Q000517:prevention & control; D005260:Female; D006801:Humans; D008297:Male; D009067:Mouthwashes / Q000008:administration & dosage* / Q000737:chemistry; D015397:Program Evaluation; D012737:Sex Factors; D012969:Sodium Fluoride / Q000008:administration & dosage*; D011795:Surveys and Questionnaires; D013548:Sweden / Q000453:epidemiology; D014100:Toothpastes / Q000008:administration & dosage / Q000737:chemistry
chemical_list: D002327:Cariostatic Agents; D009067:Mouthwashes; D014100:Toothpastes; D012969:Sodium Fluoride