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儿童龋齿与儿童口腔不良卫生习惯的关系已众所周知，关于龋齿的患病率，尽管各家报道不一，但都认为有逐年上升的趋势［１］。造成龋齿率居高不下的一个重要原因是缺乏有效的预防措施。１９９７年，我们在全市幼儿园开展了口腔保健的健康教育并在口腔健康教育前后进行了有关调
The relationship between dental caries in children and oral malnutrition has been well known. The prevalence of dental caries, though reported differently, is considered to be increasing year by year [1]. An important reason for the high dental caries rate is the lack of effective preventive measures. In 1997, we carried out oral health education in the city’s kindergartens and made some adjustments before and after oral health education