성견에 있어서의 정중구개봉합선의 급속확장에 의한 상악골 주위 봉합의 조직학적 변화에 관한 연구

• 영문명: An experimantal study on histologic changes of surrounding maxillary sutures to the widening of midpalatal suture in the dog
• 발행기관: 대한치과교정학회
• 저자명: 周貞信(Jung-Sin Joo) 劉永奎(Young-Kyu Ryu)
• 간행물 정보: 『The Korean Journal of Orthodontics』제11권 제2호, 161~168쪽, 전체 8쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 1981.12.31

영문 초록

This study was undertaken to observe the histologic changes of surrounding maxillary sutures to the widening of midpalatal suture, using two adult dogs, weighing about 10 kg, for experimental, and one for control group. After widening of the midpalatal suture with expansion screw for ten days was performed, and followed by sacrifice of experimental animals. Tissues were excised from 5 surrounding maxillary suture portions such as, internasal, interfrontal, midsagittal, zygomatrco-temporal, and midpalatal sutures. After that, the specimens were fixed and d calcified in 10% formalin sol. and 5% nitric acid. Embedding in paraffin end, serial sections at a thickness of 5 micron was done, After Hema toxylin Eosin staining and light microscopic examination, Following results were obtained 1. in midpalatal suture area, which showed most prominent histologic change, High degree of fibronlastic and osteoblastic proliferation lining the bony trabeculae with osteoid tissue projection into the fibrous connective tissue were observed. 2. In interfrontal suture area, moderate degree of fibroblastic and osteoblastic proliferation was observed. 3. In internasal suture area, active osteoblastic and osteoclastic proliferation lining the bony trabeculae was observed, and separation of fibrous connective tissue was also observed. 4. In midsagittal and zygomatico-temporal suture areas, no histologic changes can be observed.