Crossner C G, Holm A K
Acta Odontol Scand. 1975;33(3):135-42. doi: 10.3109/00016357509026354.
The aim of the study was to assess the oral health of a group of children, and to compare the findings with the results from an investigation performed 4 years earlier in children of the same age and living in the same area. The material consisted of 149 randomly selected 8-year-old children. The study included examination of caries and the state of the gingival conditions, enamel hypoplasia and opacities, supragingival calculus and extrinsic stains. Determinations were also made of the rate of secretion, pH and buffer effect of stimulated saliva. Socio-economic data and anamnestic dental data were noted. The investigation showed a decrease in caries frequency in the primary teeth, but not in the permanent teeth, during the four-year-period. As in the former investigation, regression analyses showed a negative correlation between the level of education of the parents and caries indices, and that the variation of the gingival indices could be explained by socio-economic factors. In addition, a negative correlation was found between the caries index for primary teeth and the rate of secretion of the saliva and the presence of supragingival calculus.
该研究的目的是评估一组儿童的口腔健康状况，并将研究结果与4年前对同一年龄且居住在同一地区的儿童进行调查的结果进行比较。研究对象包括149名随机挑选的8岁儿童。该研究涵盖了龋齿检查、牙龈状况、釉质发育不全和混浊、龈上牙石及外源性色斑。还测定了刺激性唾液的分泌速率、pH值和缓冲作用。记录了社会经济数据和既往牙科数据。调查显示，在这四年期间，乳牙的龋齿发生率有所下降，但恒牙的龋齿发生率没有下降。与之前的调查一样，回归分析显示父母的教育水平与龋齿指数之间呈负相关，牙龈指数的变化可以用社会经济因素来解释。此外，乳牙龋齿指数与唾液分泌速率和龈上牙石的存在之间呈负相关。
