昭和40年度熊本県菊池市学童う歯についての調査研究

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Kikuchi City has been said to have the largest number of pupils having carious teeth. The following investigation was made by the Research Group of the Association in order to clarify their actual condition.<BR>Material was the records of oral examinations in a total of 3774 pupils in all the eleven primary schools in Kikuchi City, and soley the so-called 6-year-old molars were investigated, counting both treated and untreated teeth, and a child having either one molar or even four (upper, lower, left and right) molars affected by caries as a head.<BR>1. The caries incidence rate per head of the 6-year-old molars in the pupils of oll the primary schools in Kikuchi City in 1965 was 71.11% (_??_67.51, _??_74.93). Also the per-head-percentage of the carious 6-year-old molars which had been treated on was 40.99%, while its per-tooth-percentage was 52.33%. It is rather good, but is far from an idealistic dental service.<BR>2. In this study the city was divided into four parts, the mountain, the mountain with some paddyfields, the business area, and the level area mostly paddy-field. The highest rates of caries incidence in the 6-year-old molars at different age levels always were those in the business area, the part of the mountain with paddy-fields closely following. Then the mountain, and the lowest rates always were those in the level area.<BR>3. The caries incidence percentages of the 6-year-old molars per head and per year of entrance to school were: the 1st graders in 1960 was 16.00%, while those in 1965 was 38.39%, the latter being approximately 2.6 times as much as the former.
有限責任中間法人日本口腔衛生学会の論文

昭和40年度熊本県菊池市学童う歯についての調査研究

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