악관절 내장증의 임상 및 방사선학적 연구
A CLINICAL AND RADIOLOGICAL STUDY ON THE INTERNAL DERANGEMENT OF TMJ
한원정, 박성식, 김은경,
소속 상세정보
한원정 ( ) - 단국대학교 치과대학 구강악안면
박성식 ( ) - 단국대학교 치과대학 구강내과학교실
김은경 ( ) - 단국대학교 치과대학 구강악안면
KMID : 0386219920040010025
Abstract
Internal derangement of the temporomandibular joint can be defined as an abnormal relationships of the meniscus relative to the mandibular condyle, articular fossa and eminence. This may cause variable mandibular dysfunctions and pain. For diagnosis, arthrography, computed tomography and magnetic resonance imaging are used. In this study, the authors reviewed 98 TMJs of 88 patients who were diagnosed as internal derangement through inferior joint space arthrography at the department of Oral & Maxillofacial Radiology, Dental Hospital, Dankook University through 1986 to 1992. 98 TMJs consisting of 30 disc displacement with reduction, 48 disc displacement without reduction and 20 perforation were studied about clinical and radiological findings.
The results were as follows :
1. Internal derangement was found most frequently in the 2nd and 3rd decades and the average age of perforation was higher than that of disc displacement with reduction. The sexual predilection was 2 times higher in females.
2. The most frequent chief complaints were TMJ sound in displacement with reduction, pain and limitation of mouth opening in disc displacement without reduction and pain in perforation. The duration of the chief complaints was longer in disc displacement with reduction than in preforation and disc displcement without reduction.
3. Reciprocal click was the most frequently TMJ sound in disc displacement with reduction. History of joint sound in disc displacement without reduction and crepitus in perforation was the most frequent one.
4. The average maximum opening was 45.4mm in disc displacement with reduction, 31.4㎜ in disc displacement without reduction and 33.8mm in perforation.
5. In the centric occlusion, posterior condylar position was the most frequent in disc displacement with reduction, posterior and concentric condylar position was frequent in disc displcement without reduction, concentric and anterior condylar position in perforation. At 1 inch opening, the same position to articular eminence was most frequently found in disc displacement with reduction, posterior position in disc displacement without reduction, posterior and anterior position in perforation was frequently found.
6. Bony changes, especially sclerosis and flattening, was most frequently found in perforation.
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