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자료유형
학술저널
저자정보
이선기 (경희대학교 치과대학 치과방사선과학교실) 이상래 (경희대학교 치과대학 치과방사선과학교실)
저널정보
대한영상치의학회 치과방사선 치과방사선 제20권 제1호
발행연도
1990.1
수록면
125 - 133 (9page)

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It is known that radiation therapy is a kind of treatment choices of the maxillofacial tumors. This study is designed to investigate the effects of irradiation on rat's tongue tissues as functional tissues which relate to taste, mastication, and pronunciation. 88 rats (Sprague Dawley branch, male) were divided into control group of 4 and experimental group of 84. Experimental group was singly exposed to Co-60 irradiation with 8, 13, 18 Gy in the head and neck region. Animals were sacrificed on 1 hour, 3 hours, 6 hours, 1day, 3 days, 7 days, and 28 days after the irradiation. The specimens were observed by histopathological examination employing H-E stain and Van-Gieson stain. The results were follows; 1. The tongue tissue were severely swollen on the 1 hour after irradiation, but gradually decreased in course of time. 2. The basal cells of epithelium of tongue proliferated at initial stage of irradiation, but gradually decreased. The Keratin layer were gradually increased. 3. The muscles within the tongue were severely degenerated at initial stage of irradiation, but gradually recovered almost normally. 4. The tissue changes after irradiation were gradually increased by the degree of irradiation.

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