악교정수술환자에서 술전ㆍ후의 교합력 변화에 관한 연구

• 영문명: A study on changes in the maximum bite force after orthognathic surgery
• 발행기관: 대한구강악안면외과학회
• 저자명: 서종천(Jong Cheon Seo) 김종렬(Jong Ryoul Kim) 양동규(Dong Kyu Yang)
• 간행물 정보: 『대한구강악안면외과학회지』대한구강악안면외과학회지 제22권 제1호, 121~129쪽, 전체 9쪽
• 주제분류: 의약학 > 내과학
• 파일형태: PDF
• 발행일자: 1996.01.30

영문 초록

This study was undertaken to investigate the changes of maximum bite force, range of mouth opening, and muscle activity in EMG after orthognathic surgery. The maximum bite force, range of mouth opening, and muscle activity in EMG were measured in 20 dentofacial deformity patients, aged 19-38(mean age 23.95) years, before surgery and at 2, 3 and 6 months after surgery. These patients were divided into three groups according to operation methods, that is 3 in IVRO group, 8 in BSSO group, and 7 in two-jaw surgery group. Thereafter the recovery of maximum bite force and the effect of duration of intermaxillary fixation were assessed. The results, were as follows. 1.The presurgical maximum bite force was 12.13 kg in upper first molar(Lt. Side 12.15kg, Rt. side 12.15kg respectively). being much lower than that of normal occusion, and maximum mouth opening was 48.45mm, falling in the normal range. 2. Maximum bite force and mouth opening were much increased 3 months after surgery in BSSO group and 3 months to 6 months after in IVRO and two-jaw surgery groups. 3. Muscle activity in EMG during maximal bite was lower than that of normal occlusion and approaching to the presurgical value or above at follow up examination 6 months after surgery. 4. It takes approximately 6 months after surgery for the bite force to recover to its presurgical value.

목차

Abstract

I. 서론

II. 연구대상 및 방법

III. 연구성적

IV. 총괄 및 고찰

V. 결론

참고문헌

키워드

Bite force orthognathic surgery