영구자석을 이용한 고양이 구치부 intrusion에 관한 초기 조직학적 연구

• 영문명: An initial histologic study on molar intrusion of cat with the usage of permanent magnet
• 발행기관: 대한치과교정학회
• 저자명: 김승철(Seung-Chul Kim) 유영규(Young-Kyu Ryu)
• 간행물 정보: 『The Korean Journal of Orthodontics』제20권 제1호, 169~179쪽, 전체 11쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 1990.04.30

영문 초록

Utilizing the repelling force of permanent magnet of find out weather it shows the findings of molar intrusion histologically and compares the result with the resin bite plane. As for the experimental animals, 10 cats of completion of permanent dentition with mean weight of 2.2kg which have flat occlusal plane of molar areas were used. I raised the cats under the condition of their being attached with manufactured appliance by direct bonding system and of their wearing vertical chin strap anesthetized for 12-14 hours per day through 5 days. Then, observing the root apex areas with lightmicroscope. The results were as follows; 1. In the group with resin bite plane, osteoblasts and osteoclasts could not find out but could find out periodontal ligment fiber obliquely angulated in the apical and lingual direction. 2. In the group with the permanent magnet, not only the obliquely angulated periodontal ligament fiber but also the osteoclasts at the apical areas were observed.