Edward S
Department of Pedodontics, Faculty of Odontology, Göteborg University, Sweden.
Acta Odontol Scand. 1997 Jan;55(1):23-6. doi: 10.3109/00016359709091936.
The attitude toward the need for restorative treatment of carious approximal tooth surfaces changed gradually during the 1970s. The depth of the carious lesions and an assessment of their progression rate was recommended to be the basis for decisions of whether preventive measures or restorative therapy should be applied. The aim of this study was to examine whether this view on caries therapy had influenced the treatment of posterior approximal surfaces and the choice of caries diagnostic criteria in studies on changes in caries prevalence over time. The material comprised posterior bitewing radiographs and records from the annual dental care of two groups of teenagers, born in 1964 an 1971, respectively. By means of an index system every approximal surface from the distal surface of the first premolars to the mesial surface of the second molars was given a caries diagnostic score on the basis of the depth of the lesions. The fillings inserted during the same treatment period as the radiographs had been taken were then grouped on the basis of the scores. At 13 years of age the percentage of fillings inserted in teeth with carious lesions extending into the outer and those extending into the inner half of the enamel was significantly higher in children born in 1964 than those born in 1971. This was also the case with fillings inserted at 16 years of age in teeth with lesions extending into the inner half of the enamel. On the basis of these results it was concluded that comparisons between the two groups with regard to approximal caries prevalence has to be based on criteria that cover both fillings and initial and frank carious lesions. This seems to have a general bearing on comparisons between groups of the same age but with different years of birth.
在20世纪70年代，对于龋损邻面牙体组织修复治疗必要性的态度逐渐发生了变化。龋损深度及其进展速度的评估被推荐作为决定应采取预防措施还是修复治疗的依据。本研究的目的是检验这种龋齿治疗观点是否影响了后牙邻面的治疗以及在龋齿患病率随时间变化研究中龋齿诊断标准的选择。研究材料包括两组分别出生于1964年和1971年的青少年的后牙咬合翼片以及年度口腔检查记录。通过一个指数系统，根据龋损深度，对从第一前磨牙远中面到第二磨牙近中面的每个邻面给予一个龋齿诊断分数。然后，将在拍摄咬合翼片的同一治疗期间所充填的牙齿，根据这些分数进行分组。在13岁时，1964年出生的儿童中，龋损累及釉质外层和累及釉质内半层的牙齿中所充填的比例显著高于1971年出生的儿童。在16岁时，对于龋损累及釉质内半层的牙齿所进行的充填情况也是如此。基于这些结果得出结论，两组之间邻面龋患病率的比较必须基于涵盖充填体以及初期龋和明显龋损的标准。这似乎对于同一年龄但出生年份不同的组间比较具有普遍意义。
