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Effect on approximal caries in teenagers of interrupting a school‐based weekly NaF mouthrinse program for 3 years
Author(s) -
Widenheim Jan,
Birkhed Dowen,
Hase Jan C.,
Olavi Göran
Publication year - 1989
Publication title -
community dentistry and oral epidemiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.061
H-Index - 101
eISSN - 1600-0528
pISSN - 0301-5661
DOI - 10.1111/j.1600-0528.1989.tb00594.x
Subject(s) - medicine , dentistry , incidence (geometry) , significant difference , orthodontics , optics , physics
The aim of the present investigation was to follow the caries incidence in 126 13‐yr‐old children who experienced a 3‐yr interruption of a supervised weekly mouthrinse program with 0.2% NaF solution (interrupted rinsing‐, IR‐group). 143 children, 13 yr old, who continuously participated in the NaF mouthrinse program, served as a comparison group (continuous rinsing‐, CR‐group). Dental caries and restorations were diagnosed on bitewing radiographs; thus only approximal tooth surfaces were considered. The caries incidence over the 3‐yr period was 1.84 DFS in the IR‐ and 1.77 in the CR‐group. The corresponding FS‐values were 0.67 and 0.25, respectively. Two years later, i.e. when the children were 18‐yr‐old and the IR‐group had had 2 yr back on the school‐based mouthrinse program, they were examined again. The difference in caries incidence between 16 and 18 yr of age was still small, 1.32 DFS in the IR‐ and 1.22 in the CR‐group. The corresponding FS‐values were 0.63 and 0.49, respectively. Thus, this study showed that the 3‐yr interruption of the NaF mouthrinse program resulted in a small, statistically non‐significant increase in caries, mostly as regards the number of fillings, on approximal tooth surfaces