Korean J Oral Maxillofac Radiol.
2005 Dec;35(4):231-234.
The diagnosis of coronoid impingement using computed tomography
- Affiliations
-
- 1Department of Oral and Maxillofacial Radiology, BK21, and Dental Research Institute, College of Dentistry, Seoul National University, Korea. raylee@snu.ac.kr
- 2Department of Oral and Maxillofacial Surgery, Sanggye Paik Hospital, College of medicine, Inje University, Korea.
- 3Department of Oral and Maxillofacial Radiology, College of Dentistry, Seoul National University, Korea.
Abstract
- Coronoid impingement can cause limitation of mouth opening. In many cases, it appears to be related to the coronoid hyperplasia. We present a case of mouth opening limitation caused by coronoid impingement on the posterior surface of the zygomatic bone without coronoid hyperplasia. The bony changes in coronoid and zygoma including surface irregularity and discontinuity of the cortex and sclerotic change of inner medullary space were noted on computed tomography (CT) scans in different level of axial planes. Through another CT scans in open mouth position could demonstrate that those bony changes were caused by the contact of both surfaces against each other. In case coronoid impingement is suspected of the many possible causes, the open mouth CT scans will be needed to reveal the direct impingement of coronoid on zygoma even without coronoid hyperplasia.
- Full Text Links
-
- Actions
-
Cited
- CITED
-
- Close
- Share
-
- Similar articles
-
- Coronoid Process Hyperplasia: A Rare Case of Restricted Mouth Opening Masquerading as Temporomandibular Disorder
- Coronoid impingement syndrome: literature review and clinical management
- Severe trismus due to bilateral coronoid process hyperplasia in growth hormone therapy patient: a case report
- Coronoid view: A New Radiograph for the Evaluation of the Coronoid Fractures
- Trismus Due to Bilateral Coronoid Hyperplasia
