Biomedical subjects
Publications and source records attributed to G Hetzer.
The caries-statistical date from 1.500 subjects aged between 7 and 16 years showed that the caries incidence in children and adolescents who had received complete dental treatment was by 31% lower, after two years, than that in children and adolescents who had not received complete dental treatment. Thus, the restorative functions of single fillings are completed by a complex preventive aspect.
The authors report of further results from and experience with the automated processing of caries-epidemiological data by means of the R 300 computer. The extension of result documentation to qualitative characteristics of caries incidence in the framework of scientific problems is described and critically evaluated, taking a caries-protective collective action for an example.
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The authors report on clinical results, with regard to the inhibition of the increase in caries in the permanent juvenile denture amounting to about 40%. This refers to an experimentally extablished double rinsing procedure. Because of the favourable state of affairs between caries protection, expenses, and management, the authors recommend the utilization of this procedure for group prophylaxis.
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Explore the source record for details and available documents.
Explore the source record for details and available documents.
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There have only been few investigations comparing total fluoride intake and the fluoride proportion excreted in urine in pre-school children. In addition, the results of available studies are conflicting. Total fluoride intake was assessed in 11 healthy children aged 3-6 years on 2 consecutive days and urinary fluoride excretion was determined. The duplicate-diet approach was used for the assessment of fluoride intake from solid and liquid foods. Fluoride intake from toothbrushing was calculated as the difference between the amount of fluoride in the paste put on the toothbrush and the drinking water (fluoride concentration 0.25 mg/l) used for rinsing vs. the fluoride amounts recovered in the toothpaste spat out and in the rinsing water. Use of fluoridated domestic salt and/or fluoride tablets was recorded. The children's intake of fluoride from food averaged 202.5+/-116.2 microg F/day. They swallowed an average amount of 273.9+/-175.6 microg F/day when brushing their teeth. Daily fluoride ingestion from all sources totalled 930.7+/-391.5 microg or 53.0+/-21.4 microg/kg body weight. On average 51.5% of the fluoride ingested was excreted in urine. The wide interindividual variation makes it necessary to evaluate the urinary excretion rate for fluoride in larger study populations with varied fluoride exposure.