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[The effect of knowledge of caries prevention on oral hygiene].

The Quigley-Hein Index was determined and knowledge of prophylactic treatment for caries was tested in 171 senior high school students between the ages of 15 and 17. The findings indicated that the knowledge of caries prophylaxis was good; oral hygiene however was found to be poor (mean Quigley-Hein Index: 3.1). The correlation between plaque index and number of incorrect answers on the test of the knowledge of prophylactic treatment for caries was extremely low.