교정치료시 전치부 후방견인에 이용하는 SAS의 효율성

• 영문명: THE EFFICIENCY OF SAS USED RETRACTION OF THE ANTERIOR TEETH ON ORTHODONTIC TREATMENT
• 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 제4호, 245~248쪽, 전체 4쪽
• 주제분류: 의약학 > 내과학
• 파일형태: PDF
• 발행일자: 2003.08.30

영문 초록

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.

키워드

Skeletal anchorage system(SAS) Anchorage loss