学校歯科保健に関する研究 (6) : 今次大戦における非疎開・疎開学童の永久歯齲蝕の罹患性
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In 1949, the Dental Surveys on 376 school boys and girls of a certain primary school in Tokyo, aged from 7 to 10, who were dispersed and who were non-dispersed during the time from 1944 to 1946 on account terribleness of the World War II. The dispersed ones were divided, according to districts, into such as cities, towns and rural regions, fishing villages, and according to ages, and then did observe minutely caries of permanent teeth, (surface caries, deep seated caries and root stump caries) DMF, first general conditions of 1949 and 1950, and secondly increase and decrease of caries for one year, and got the following results:<BR>I. The dispersed ones compared with non-dispersed through all childrens, ages showed in general low in caries and DMF, especially remarkably low in deep seated caries of 1949. In 1950 surface caries and DMF showed almost the similar degree, while deep seated and root stump caries of non-dispersed showed a considerably low degree, however tendency of increasing throughout the year showed similarity in each age except aged 10 in 1949 among those children.<BR>II. Among those dispersed ones who were on farms and fishing villages in comparison with those children who were from cities and towns, aged above 8, showed generally low degree in caries and DMF in 1949, and especially, they were the remarkable cases in deep seated and root stump caries with aged 8 and 9 ones. In 1950, in aged from 8 to 10, we observed almost the similar contraction cases in both urban children, and rural and fishing ones. Accordingly, increasing inclination of one year showed rather a greater degree in farming regions and fishing villages in 1949 with those aged 7, but in other ages almost the similar inclination was observed. And the very inclination became lower as ages advanced in both urban communities and rural, fishing settlements.<BR>III. The quality of nourishment during the War had effect on caries contraction cases of permanent teeth of those children, so we can easily guess that the dispersed ones were far better circumstanced than the those non-dispersed, and at the same time, we recognized that in the same circumstance contraction cases showed similarity after all.
- 有限責任中間法人 日本口腔衛生学会の論文
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