Nordblad A, Larmas M A
Community Dent Oral Epidemiol. 1986 Oct;14(5):271-3. doi: 10.1111/j.1600-0528.1986.tb01070.x.
The purpose of the study was to analyze longitudinally the timing of enamel caries and, thereafter, fillings in occlusal, proximal and smooth surfaces of the permanent dentition of cohorts of schoolchildren initially 7, 10, 13, and 15 yr old. Altogether 228 children were examined annually during a 3-year period. Enamel and dentin caries affected on an average less than 15% of the occlusal surfaces in the first molars and at most 4% of the premolars; fillings proved to be the main determinant of the DF-scores for occlusal surfaces. On the other hand, decay was the main determinant of DF-scores on the proximal surfaces of the molars for at least 6 yr after eruption. The results indicate that in the 1970s some overtreatment of occlusal caries may have occurred, whereas indications for fillings on proximal surfaces were more accurate. The reduction in the number of extractions and fillings during the late 1970s resulted in a considerable decrease in the DMF scores. The decrease on DMF scores appears to have been due only to a minor extent to the decrease in caries. Thus, there was a decline in DMF scores rather than a decline in the prevalence of caries during this period.
该研究的目的是纵向分析学龄儿童队列恒牙列咬合面、邻面和平滑面龋病发生以及随后补牙的时间，这些儿童最初年龄分别为7岁、10岁、13岁和15岁。在3年期间，每年对总共228名儿童进行检查。第一恒磨牙咬合面的釉质龋和牙本质龋平均累及不到15%的表面，前磨牙最多累及4%的表面；补牙是咬合面DF分值的主要决定因素。另一方面，在磨牙萌出后的至少6年里，龋坏是邻面DF分值的主要决定因素。结果表明，在20世纪70年代，可能存在一些对咬合面龋病的过度治疗，而邻面补牙的指征则更为准确。20世纪70年代后期拔牙和补牙数量的减少导致DMF分值大幅下降。DMF分值的下降似乎仅在很小程度上是由于龋病的减少。因此，在此期间DMF分值下降，而不是龋病患病率下降。
