调查上海某个幼儿园的318名4～6岁儿童,其中有288名患有龋齿,占90%.这是一个不可忽视的问题.龋齿的患病年龄可自乳牙萌出即开始,一直延续到成年以后.一般来说,乳牙的龋患率高于恒牙.因此,对学龄年及青少年应特别注意预防龋齿.我国元代忽思慧著的《饮膳正要》中有“凡清旦刷牙,不如夜刷牙,齿疾不生.”的语句,强 The survey of 318 children aged 4 to 6 years old in a kindergarten in Shanghai, of which 288 had dental caries, accounted for 90% .This is an issue that can not be ignored.Dental caries can age from the eruption of deciduous teeth until the adulthood In general, the prevalence of deciduous teeth caries than permanent teeth .Therefore, the school-age children and adolescents should pay special attention to the prevention of dental caries .In our country, Yuan Huhui’s “drinking diet” in the “Where Qingdan brushing teeth, not as good as the night Brushing teeth, teeth disease is not born. ”The sentence, strong