http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 허영성 ( Young Sung Huh ) (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
-
서영준,정성우,강학수,임재중,허영성,우순섭,심광섭,황경균,Seo, Young-Jun,Jung, Sung-Woo,Kang, Hag-Soo,Im, Jae-Jung,Huh, Young-Sung,Woo, Soon-Seop,Shim, Kwang-Sup,Hwang, Kyung-Gyun 대한악안면성형재건외과학회 2005 Maxillofacial Plastic Reconstructive Surgery Vol.27 No.4
In esthetic treatment of bimaxillary protrusion, it is important to move backward the anterior teeth segment. For the backward movement of the anterior teeth segment, orthodontic force and segmental osteotomy have been applied on the clinical treatment until recently. These methods caused long treatment time, anchorage loss, the possibility of root resorption and the complication followed by segmental osteotomy. Therefore, corticotomy has become a major concern lately. This research has been conducted to study the efficiency of corticotomy in the treatment of bimaxillary protrusion comparing the profile change, canine retraction velocity and space closing time. The research compared and analyzed space closing time, canine retraction velocity and profile change in two groups of patients. Both groups were formed out of patients over 18 years old who visited the department of dentistry in Hanyang University for treatments. The experimental group who was treated by corticotomy and Skeletal Anchorage System(SAS). The control group who received orthodontic treatment using SAS. The following results are produced after analyzing both groups. The significant statistic difference in space closing time has been observed in the experimental group as compared with the control group(p<0.05). In the experimental group, the significant statistic increase in canine retraction velocity was also observed(p<0.05). There was no significant difference in profile change between the control group and the experimental group(p<0.05). As a result, orthodontic treatment using corticotomy has a reasonable efficiency in space closing time as compared with the existing orthodontic treatment. Therefore, it is concluded that corticotomy with orthodontic treatment can be reasonably applied to dentofacial abnormality.
-
구내고정원을 이용한 교정 치료중 miniscrew 탈락에 관한 연구
우순섭(Soon-Seop Woo),정순태(Soon-Tai Jeong),허영성(Young-Sung Huh),황경균(Kyung-Gyun Hwang),유임학(Im-Hag Yoo),심광섭(Kwang-Sup Shim) 대한구강악안면외과학회 2003 대한구강악안면외과학회지 Vol.29 No.2
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 12 weeks for healing of the insertion area.
-
우순섭(Soon-Seop Woo),정순태(Soon-Tai Jeong),허영성(Young-Sung Huh),황경균(Kyung-Gyun Hwang),유임학(Im-Hag Yoo),심광섭(Kwang-Sup Shim) 대한구강악안면외과학회 2003 대한구강악안면외과학회지 Vol.29 No.4
The retraction of anterior teeth could be performed more easier by inducing of skeletal anchorage system rather than by conventional method on orthodontic treatment. But, we wonder how effective the system draws well without anchorage loss and draws anterior teeth aside posteriorly, and if the system can reduce the time, in comparison with the anchorage of posterior teeth. For that reason we have studied on the subject of patients, who were required the maximum anchorage on orthodontic treatment and the cases without crowding. The subjects of the experimental group are 35 areas of 20 people who were inserted miniscrews after Mx or Mn 1st premolar extracted. Also, the subjects of the control group are 81 areas of 45 people who were not inserted miniscrews. Compared the anchorage loss of experimental group with control one, we could get the result that the anchorage loss of experimental group is 1.034±0.891mm and control group is 2.790±1.882mm(P<0.01). Compared the space closing time of experimental group with control one, we could get the result that the space closing time of experimental group is 369.40±110.81days and control group is 406.56±231.63days. But the result of comparing space closing time has no significance in statistics. We recognized that the experimental group is more faster than the control group in the canine retraction velocity from the result ; the speed of a experimental group has as much as 0.60±0.23mm/30days while the speed of a control group has 0.44±0.35mm/30days(P<0.05). So, we could convince that orthodontic miniscrew is used effectively in the cases required the maximum anchorage.
ScienceON
KISS연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
