구내고정원을 이용한 교정 치료중 miniscrew 탈락에 관한 연구

• 영문명: A CLINICAL STUDY ON SKELETAL ANCHORAGE SYSTEM USING MINISCREW
• 발행기관: 대한구강악안면외과학회
• 저자명: 우순섭(Soon-Seop Woo) 정순태(Soon-Tai Jeong) 허영성(Young-Sung Huh) 황경균(Kyung-Gyun Hwang) 유임학(Im-Hag Yoo) 심광섭(Kwang-Sup Shim)
• 간행물 정보: 『대한구강악안면외과학회지』대한구강악안면외과학회지 제29권 제2호, 102~107쪽, 전체 6쪽
• 주제분류: 의약학 > 내과학
• 파일형태: PDF
• 발행일자: 2003.04.30

영문 초록

At orthodontic treatment, we have made every effort to get rigid anchorage which is not stirred when teeth move. As a result, the miniscrew that is rigid anchorage was invented recently, and now it is used widely. Concerning the advantage of miniscrew, it is reduced dependence of extraoral anchorage and it shortens treatment time for rapid tooth movement. In contrast, the defect of miniscrew is falling off it resulted from increasing of the mobility. So the purpose of this research is to be of help to prognose clinical use of miniscrew, which is inserted for intraoral anchorage, by investigating and comparing the failure rate of miniscrew for loading time. This study researches the failure rate of miniscrew for teeth movement at the orthodontic treatment. The failure rate of miniscrew in mid course, after inserting 147 miniscrews in 51 patients, is 13%(20/147). It showed no statistically significant differences as compared man with woman, maxilla with mandible, double-head with uni-head miniscrew, and drilling and non-drilling before inserting the miniscrew. In comparison below twenties with over twenties and the times that we give load to miniscrew, it produced that the failure rate of miniscrew is 9.7% higher in the case of below the twenties than over the twenties. Also, the failure rate of loading immediately is 10.8% higher than loading after 7 days. According to using driver for the insertion of miniscrew, the failure rate of miniscrew is higher in the case of using machined driver than in the case of using hand driver when the level of significance is 95%. According to the research, we can suppose that the failure rate has no concern with using miniscrew on man or woman, maxilla or mandible, the shape of head, and drilling or non-drilling before insertion of miniscrew. Therefore, we can choose eclectic miniscrew as demands. In addition, we must notify the patient, below twenties, to be possibility of high failure rate. And It is strongly recommended to give load after 1􀅭2 weeks for healing of the insertion area.

키워드

Skelatal anchorage system(SAS) Miniscrew