Madléna M, Keszthelyi G, Alberth M
Fogorv Sz. 1989 Oct;82(10):305-9.
The aim of the present investigation was to study the number of the carious surfaces of extracted primary teeth in order to determine component m in the dmf-s index. Altogether 903 deciduous teeth were examined under artificial light with a dental probe. The surfaces were evaluated separately. The examined teeth were divided into two groups according to the amount of root resorption. On the basis of the present study the following conclusion can be drawn: 1. The average of df surfaces of molars was 2.34, whereas it was 0.74 at the front teeth. The df number shows practically only caries, because filled surfaces were found in only 1.99% of the cases. 2. In any type of the teeth df lesions were the rarest on the vestibular and oral surfaces. 3. Caries (filling) was found most frequently on the occlusal surfaces of the upper and lower 1st molars. Caries (filling was the rarest on the vestibular surfaces of the upper 1st and 2nd molars. 4. The amount of root resorption did not show much influence on the df score. 5. During the calculation of the dmf-s average of the primary teeth the m value can be substituted for 2.0.
本研究的目的是研究拔除的乳牙龋面数量，以确定dmf-s指数中的m成分。在人工光源下用牙探针共检查了903颗乳牙。各表面分别进行评估。根据牙根吸收量将检查的牙齿分为两组。基于本研究可得出以下结论：1. 磨牙的df面平均值为2.34，而前牙为0.74。df数值实际上仅显示龋齿情况，因为仅1.99%的病例有充填面。2. 在任何类型的牙齿中，df损害在前庭面和口面最为少见。3. 龋齿（充填）最常出现在上下颌第一磨牙的咬合面。龋齿（充填）在上颌第一和第二磨牙的前庭面最为少见。4. 牙根吸收量对df评分影响不大。5. 在计算乳牙的dmf-s平均值时，m值可用2.0代替。
