Journal of the Korean Association of Oral and Maxillofacial Surgeons
- Volume 27 Issue 5
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- Pages.417-422
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- 2001
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- 2234-7550(pISSN)
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- 2234-5930(eISSN)
A Study on the Size of TMD Patient's Condyle Head
악관절장애환자의 하악과두 크기에 관한 연구
- Lee, Doo-Hee (Department of Dentistry, College of Medicine, Dongguk University) ;
- Oh, Soon-Ho (Department of Dentistry, College of Medicine, Dongguk University) ;
- Suh, Chang-Ho (Department of Dentistry, College of Medicine, Dongguk University) ;
- Kim, Joon-Bae (Younsei Dream Dentistry)
- Published : 2001.10.30
Abstract
Objective: In many TMD cases, deformed and reduced condyle heads were frequently observed. This study was prepared to compare the dimensions between normal and symptomatic condyles, using MR images. Materials: One hundred and twenty one patients with clinical signs and MRI-confirmed diagnosis of disc displacement were selected for this study. Thirty eight TMJs from nineteen asymptomatic volunteers who had no clinical symptoms and no disc displacement on sagittal and coronal view of MRI, were served as normal. Methods: Symptomatic condyles were classified according to the severity of the anterior disc displacement. The amount of anterior disc displacement was evaluated at sagittal section, and they were classified into 4 groups as normal(N), little(G0), mild(G1), moderate(G2) and severe displacement(G3). The dimentions of condyle were measured at the 200% magnified view, by digitizing program. All dimensions were compared among each groups on the central section of sagittal and coronal views, and the statistical analysis was performed. Results: The mean value of anteroposterior length of normal condyle was