치과방사선 (Journal of Korean Academy of Oral and Maxillofacial Radiology)
- 제24권2호
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- Pages.337-345
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- 1994
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- 1225-049X(pISSN)
측두하악관절내장증에서 하악과두운동과 측두하악과절조영상의 상호관계
CORRELATION OF CONDYLAR MOBILITY AND ARTHROTOMOGRAPHY IN PATIENTS WITH INTERNAL DERANGEMENTS OF THE TEMPOROMANDIBULAR JOINT
- 이은숙 (서울대학교 치과대학 구강악안면방사선학 교실) ;
- 유동수 (서울대학교 치과대학 구강악안면방사선학 교실) ;
- 박태원 (서울대학교 치과대학 구강악안면방사선학 교실) ;
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최순철
(서울대학교 치과대학 구강악안면방사선학 교실)
- Lee Eun-Sook (Department of Oral and Maxillofacial Radiology, College of Dentristry, Seoul National University) ;
- You Dong-Soo (Department of Oral and Maxillofacial Radiology, College of Dentristry, Seoul National University) ;
- Park Tae-Won (Department of Oral and Maxillofacial Radiology, College of Dentristry, Seoul National University) ;
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Choi Soon-Chul
(Department of Oral and Maxillofacial Radiology, College of Dentristry, Seoul National University)
- 발행 : 1994.12.01
초록
Arthrography of the temporomandibular joint is a useful method of demonstrating the soft tissue abnormalities related to disc dysfunction. In this study, 19 asymptomatic joints, 31 joints with anterior disc displacement with reduction, 31 joints with anterior disc displacement without reduction which were classified by arthrotomography under fluoroscopy were evaluated to determine the linear measurement of anterior recess of inferior joint space and the relationship between the condylar anterior translation and the severity of the internal derangements. Their fluoroscopic images were also evaluated to describe the characteristics of condylar paths in internal derangements of the temporomandibular joints. The results were as follows; 1. The mean lengths of the anterior recess in asymptomaic group. reduction group. and non-reduction group were 8.7±1.6㎜. 11.2±1.7㎜, 12.8±1.7㎜ respectively. The length of the anterior recess was increased according to the severity of the internal derangements(P<0.05). 2. Linear measurements of anterior movement of condyle on maximum mouth opening were 13.1 ±4.2㎜, 15.9±4.1㎜, 5.0±3.7㎜ in asymptomatic group. reduction group, and non-reduction group respectively. Compared with asymptomatic group, reduction group showed hypermobolity of the condyle and non-reduction group showed hypomobility. 3. Condyles moved beyond the crest of articular eminence in 80% of reduction group and did not reach it in 70% of non-reduction group. 4. The condyle moved mainly superiorly in reduction group(66%) and horizontally in asymptomatic group(47%). There were no cases to move superiorly in non-reduction group.