Booyens S J, van Rooy H K, van der Merwe C A
Department of Community Dentistry, University of Pretoria.
J Dent Assoc S Afr. 1991 Apr;46(4):213-6.
The caries experience of five-year-old caucasian children at various sites in the world at the present time could be termed moderate to low, and a declining tendency has been noted in the past decade. The aim of this study was to determine the current status and trends of caries experience of 5-year-old caucasian nursery school children in Pretoria. The results from this study, conducted in 1987, showed that 50.9 per cent of 5-year-olds were free of caries experience (dmft = 0) and that the mean dmft was low, viz. 1.97. A comparison of these results with figures published in 1979 indicates that a notable reduction in caries experience has taken place during a period of eight years, the proportion of 5-year-olds free of caries experience having been 40 per cent in 1979, with a mean dmft of 2.9. The most significant change during this period was the decrease in the decayed component of the dmft.
目前，世界各地五岁白人儿童的龋齿患病情况可称为中度至低度，并且在过去十年中已注意到有下降趋势。本研究的目的是确定比勒陀利亚五岁白人幼儿园儿童龋齿患病情况的现状和趋势。1987年进行的这项研究结果表明，50.9%的五岁儿童没有龋齿患病经历（dmft = 0），并且平均dmft较低，即1.97。将这些结果与1979年公布的数据进行比较表明，在八年期间龋齿患病情况有显著下降，1979年没有龋齿患病经历的五岁儿童比例为40%，平均dmft为2.9。在此期间最显著的变化是dmft中龋损部分的减少。
