A 3-yr daily supervised toothbrushing study with a double blind design was conducted to evaluate the anticaries effectiveness of a 1.14% sodium monofluorophosphate (MFP) dentifrice (1500 ppm F) compared to a 0.76% MFP dentifrice (1000 ppm F). This study began with nearly 4000 children, primarily aged 8-11, in grades 3-5, residing in a nonfluoridated community in Florida. A total of 2415 children completed 3 yr of the study, representing 61% of the children who began the study. The results indicate a statistically significant (P less than 0.001) anticaries benefit was derived over a 3-yr period from the use of the higher fluoride dentifrice (1500 ppm F) when compared to the positive control (1000 ppm F). Percent reductions in mean dental caries increments were 20.9%, 22.1%, 21.8%, 24.3%, and 35.2% for DMFT, DFT, DMFS, DFS, and DFS Interproximal, respectively.
A survey was conducted of the chairmen of the departments of community dentistry (or an equivalent department) within all full‐curriculum dental schools in the United States as of September 1973, to obtain information on the rane of extramural experiences, the departmental responsibilities for these experiences, the times and the distributions of the experiences, and on feedback related to the experiences. Thirty‐six respondents reported a wide variety of experiences with most activities under the auspices of departments of community dentistry. A trend toward concentration of the extramural experiences in the latter years of the curriculum was noted. Feedback from both the participating dental students and the patients was mostly positive to strongly positive. Most responding chairmen agreed that the extramural experiences may be helping to create a more socially conscious graduate, although few had conducted formal evaluations of the programs which could support this impression.
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