Clark D C, Hann H J, Williamson M F, Berkowitz J
Faculty of Dentistry, University of British Columbia, Vancouver, Canada.
Community Dent Oral Epidemiol. 1995 Feb;23(1):20-4. doi: 10.1111/j.1600-0528.1995.tb00192.x.
This study was undertaken to determine the prevalence of dental caries in children ages 6-14, from fluoridated and non-fluoridated areas in British Columbia, Canada, and the effects of receiving certain fluoride preventive procedures during childhood. Children from two communities were surveyed using a modified Decayed, Missing and Filled Tooth Surface Index (D1D2MFS). Questionnaires on the use of various fluoride preventive practices and residence histories during childhood were collected. Completed questionnaires were returned and exams were performed on 1131 children. Crude caries prevalence scores for the different fluoride exposure groups were tested for differences in dental age and the level of educational attainment of parents and/or guardians. No significant group differences were found. The 110 children with lifelong exposure only to fluoridated water had 35%, or 0.88 (S.D. = 2.91), fewer decayed or filled tooth surfaces per child (P < 0.07) than children with no reported exposure to systemic fluorides. For the 122 children who had taken fluoride supplements for 4 yr or more, 0.67 fewer decayed and filled tooth surfaces (26% reduction) were observed per child when compared to children with no exposure to fluoridated water or supplements. For children who used fluoride supplements for less than 4 yr, no significant benefits were observed. Approximately 75% of the caries prevalence for control and fluoride-exposed groups was on pit and fissured surfaces. Reductions by surface type showed savings on both smooth and pit and fissured surfaces.
本研究旨在确定加拿大不列颠哥伦比亚省氟化地区和非氟化地区6至14岁儿童的龋齿患病率，以及儿童时期接受某些氟化物预防措施的效果。使用改良的龋失补牙面指数（D1D2MFS）对来自两个社区的儿童进行了调查。收集了关于各种氟化物预防措施使用情况和儿童时期居住史的问卷。共收回1131份完整问卷，并对这些儿童进行了检查。对不同氟暴露组的粗龋齿患病率得分进行了测试，以检验其在牙龄以及父母和/或监护人教育程度方面的差异。未发现显著的组间差异。仅终身暴露于氟化水中的110名儿童，其每名儿童的龋坏或补牙面数量比未报告接触全身性氟化物的儿童少35%，即少0.88个（标准差=2.91）（P<0.07）。对于服用氟补充剂4年或更长时间的122名儿童，与未接触氟化水或氟补充剂的儿童相比，每名儿童观察到的龋坏和补牙面数量减少了0.67个（减少了26%）。对于服用氟补充剂少于4年的儿童，未观察到显著益处。对照组和氟暴露组约75%的龋齿患病率出现在窝沟表面。按表面类型划分的减少情况表明，平滑表面和窝沟表面均有减少。
