Vehkalahti M, Helminen S, Rytömaa I
Department of Cariology, University of Helsinki, Finland.
Caries Res. 1990;24(4):279-85. doi: 10.1159/000261283.
This study investigated the occurrence of caries among 15-year-olds using the municipal oral health service in Helsinki in 1976 and in 1986. Data were collected from each subject's personal dental health file as recorded during routine check-ups by dentists in the health centre of the city of Helsinki in the year in question. All indicators showed a significant improvement (p less than 0.001) in dental health during the 10-year period. The percentage of intact teeth and surfaces increased markedly. The mean number of DMF teeth per person fell from 12.1 to 5.1 and that of proximal DF surfaces from 5.6 to 1.5. In the 1976 group, 63% of all occlusal surfaces had been filled or were decayed. Ten years later the figure was 26%. Proximal DFS percentages were 10 and 3%, respectively. The ratios of the total number of proximal to occlusal DFS were 0.6 in 1976 and 0.4 in 1986.
本研究调查了1976年和1986年在赫尔辛基使用市政口腔健康服务的15岁青少年的龋齿发生情况。数据收集自每位受试者的个人牙齿健康档案，这些档案是由赫尔辛基市健康中心的牙医在相关年份的定期检查期间记录的。所有指标均显示，在这10年期间牙齿健康状况有显著改善（p小于0.001）。完好牙齿和牙面的百分比显著增加。人均DMF牙数从12.1颗降至5.1颗，邻面DF牙面数从5.6个降至1.5个。在1976年的组中，所有咬合面中有63%已填充或龋坏。10年后，这一数字为26%。邻面DFS百分比分别为10%和3%。1976年邻面与咬合面DFS总数的比率为0.6，1986年为0.4。
