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논문 기본 정보

자료유형
학술저널
저자정보
김원철 (경희대학교 치과대학 구강악안면방사선학 교실ㆍ구강진단내과학 교실) 황의환 (경희대학교 치과대학 구강악안면방사선학 교실ㆍ구강진단내과학 교실) 이상래 (경희대학교 치과대학 구강악안면방사선학 교실ㆍ구강진단내과학 교실) 홍정표 (경희대학교 치과대학 구강악안면방사선학 교실ㆍ구강진단내과학 교실)
저널정보
대한영상치의학회 치과방사선 치과방사선 제24권 제2호
발행연도
1994.1
수록면
263 - 274 (12page)

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The purpose of this study was to investigate the remodeling process of the streptozotocin-induced diabetic rat's resected condyle. This experiment was performed with male Sprague-Dawly strain rats weighing approximately 250 gm, which were rendered diabetic by an intravenous injection of streptozotocin(70㎎/㎏ body weight). After condylectomy, experimental rats were serially terminated on the 1st week, the 2nd week, the 3rd week, and the 4th week. The following termination, the mandibles were dissected out to make specimens. Each mandibular condyle was radiographed with Hitex HA-80(Hitex Co., Ltd. Japan). In addition to radiographic observation, the mandibular condyles, further decalcified and embedded in paraffin, were sectioned and stained with Hematoxylin and Eosin, Toluidine blue and Masson's trichrome. They were observed with a light microscope and a polarizing microscope. The results were as follows. 1. Soft X-ray radiograms revealed proliferation of bone after 1 week in both groups. Irregularly repaired bones and dense trabeculae were clearly observed in experimental group. 2. The resected condyles were repaired by intramembraneous and endochondral bone formation in both groups. 3. Bone tissue repair was initiated from the adjacent margin of resected bone, and cartilaginous tissues were observed at the top of repaired bone in both groups. 4. The number of osteoblasts of experimental group was small, compared with control group. Each osteoblast was small and flat. The thin trabeculae were irregularly formed. 5. Collagens of bone were gradually matured in both groups, but the degree of maturation was lower in experimental group. 6. Fibrous tissues covered the upper parts of repaired bone were densely arranged in the both groups. Conclusively, atrophied osteoblasts, immature collagen of bone, and thin and irregular trabeculae which were characterized in the diabetes experimental group showed diabetes disturbed osteoblastic function and caused disturbance of remodeling process of bone.

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