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논문 기본 정보

자료유형
학술저널
저자정보
김재덕 (서울대학교 대학원 치의학과 치과방사선학)
저널정보
대한영상치의학회 치과방사선 치과방사선 제6권 제1호
발행연도
1976.1
수록면
45 - 50 (6page)

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초록· 키워드

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The author observed morphological change in palate development of rat embryo after irradiation of x-ray on the one side of the duplex uterus. The time-matings occured between 6 p.m. and 8 p.m. and all females with copulation plugs at 8 a.m. were isolated and properly marked for evidence of copulation. The lower left abdomen of mothers were exposed to x-radiation on the 7 1/2th, 9 1/2th, 11 1/2th day of gestation, respectively 150, 250, 350, 500rads. At 18 1/2th day of post-conception, the pregnant females were dissected and the contents of the two uteri examined. The translucent sample by Alizarin red S stain were prepared. The results were as follows; 1. The result that groups irradiated by 250rads and 350rads made marked difference in comparison with the control group suggests the x-ray to be a inducing factor of cleft palate. 2. At 11 1/2th day of gestation, incidence of cleft palate induced by x-irradiation was highest. 3. Mortality showed the highest frequency at 7 1/2th day of gestation and tended to decrease in according to increasing of age. 4. Morphology of cleft palate induced by x-irradiation showed similarity in comparison with those induced by other factors having reported ever.

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