1959 年 9 巻 2 号 p. 104-135
The statistical operation of multiple classification is very important for the analysis of the oral examination results. However, the calculation of data in multiple classification by sex, age, location and degree of diseases is very complicated in performance. because the combination of the items is numerous. The author indicated a plan of applying the Remington Rand accounting system for the statistical analysis of the dental examinations.
The caries rate, DMF rate, case rate of dental calculus, gingivitis, alveolar pyorrhoea and prodthetic appliance: crown, inlay, plate denture, dummy and abutment teeth were classified in raw materials. Graphs, based on those data, were drawn for understanding the general tendency.