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논문 기본 정보

자료유형
학술저널
저자정보
유영선 (경희대학교 치과대학 구강악안면방사선학 교실) 황의환 (경희대학교 치과대학 구강악안면방사선학 교실) 이상래 (경희대학교 치과대학 구강악안면방사선학 교실)
저널정보
대한영상치의학회 치과방사선 치과방사선 제26권 제2호
발행연도
1996.1
수록면
91 - 107 (17page)

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The purpose of this study was to investigate effects of osteoporosis on extraction wound healing in the calcium deficient rat. In order to carry out this study, ten-week old Wistar strain rats weighing about 300 gms were selected. When the rats reached thirteen-week old, rats' mandibular first molars were removed. The rats were then divided into three groups: Group l(rats given a normal diet both before and after tooth extraction), Group 2(rats given a low calcium diet for three weeks before tooth extraction and a normal diet after tooth extraction), and Group 3(rats given a low calcium diet for three weeks before and after tooth extraction). The healing of extraction wounds, as assessed by microradiography, autoradiography, and histopathologic examination, were compared among these three groups. The obtained results were as follows : I. In Group 1, newly formed bone and active uptake of 45Ca around extraction wound were noted on the 3rd and the 7th day. On the 14th and the 21st day, the extraction wounds of this group showed the bone trabecular formation and active 4Ca uptake in the extraction wound and alveolar crest. The more prominent bone trabeculae with a less uptake of <SUP>45</SUP>Ca were noted on the 42nd day. 2. In Group 2, newly formed bone and thinning of alveolar bone trabeculae with more extensive uptake of <SUP>45</SUP>Ca than that in Group 1 were noted on the 3rd and the 7th day. On the 14th day, bone trabeculae were less thicker than that in Group 1. The prominent bone trabeculae in the extraction wounds and alveolar crest were noted on the 21st and the 42nd days. 3. In Group 3, newly formed bone was noted on the 3rd and the 7th day. Alveolar bone trabeculae and uptake of <SUP>45</SUP>Ca were similar to that in Group 2. On the 14th and 21st day, bone trabeculae were less thicker than that in Group 2 and Group 3. The osteoporotic change with active uptake of <SUP>45</SUP>Ca was markedly noted on the 42nd day.

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