Effect of repeated dental health care education on gingival health, knowledge, attitude, behavior and perception

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Abstract
To evaluate the effect of repeated dental health care instructions plus a single initial prophylaxis a study was conducted in the Dutch Royal Military Academy. The experimental group consisted of 2nd yr cadets and the control group of 1st yr students. The final examination took place 1 yr after the baseline examination. After the final examination the study was repeated to see whether the results of the 1st experiment were reproducible. Experimental effects were measured by a questionnaire and dental indices. The results of the study showed significant and relevant improvements in dental knowledge, attitude, reported behavior, the participants'' perception of the gingival status, the ability to diagnose gingivitis and the conditon of the supporting tissues. The effects were reproduced in the 2nd experiment.