[Preventive dentistry for children. 1. The use of fluoride and pit-fissure sealant]

In the past 10 years, the dental caries prevalences of children in developed countries have declined dramatically and the same trend seems to appear for Thailand. This report will review the current knowledge and technology of many modalities in preventive dentistry on which concerted use will bring about the highest efficiency in preventing caries & gingivitis in children. In part one, the etiology of caries & periodontal disease in children will be reviewed. The use of systemic and topical fluoride, pit and fissure sealant are the first two methods of preventive dentistry discussed. The mechanical plaque control, diet modification and infant oral health counseling will be presented in part two.