Panoramic Radiography of the Temporomandibular Joint. Part 2: A Study of Horizontal Optimum Angle of X-ray Beam to Mandibular Condyle.
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- TAKEUCHI Toru
- Department of Oral and Maxillofacial Radiology, School of Dentistry, The University of Tokushima
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- TAKAHASHI Akira
- Department of Oral and Maxillofacial Radiology, School of Dentistry, The University of Tokushima
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- SUGAWARA Chieko
- Department of Oral and Maxillofacial Radiology, School of Dentistry, The University of Tokushima
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- SHIMOMURA Manabu
- Department of Oral and Maxillofacial Radiology, School of Dentistry, The University of Tokushima
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- MAEDA Naoki
- Department of Oral and Maxillofacial Radiology, School of Dentistry, The University of Tokushima
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- TADA Akihisa
- Department of Oral and Maxillofacial Radiology, School of Dentistry, The University of Tokushima
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- UEMURA Shusaburo
- Department of Oral and Maxillofacial Radiology, School of Dentistry, The University of Tokushima
Bibliographic Information
- Other Title
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- パノラマX線撮影装置を利用した顎関節撮影法 第二報 水平方向の至適X線入射角度の検討
- Part 2: A Study of Horizontal Optimum Angle of X-ray Beam to Mandibular Condyle
- 第二報 水平方向の至適X線入射角度の検討
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Description
The horizontal angle of x-ray beam projection to obtain an optimum anterior-oblique view of the mandibular condyle on a panoramic radiogram with least superimposition of the cranial base structures was examined. Eleven left temporomandibular joints from 11 dried human skulls were studied. Thirteen images were obtained for each joint, projected from 8° posterior to 52° anterior in 5° steps. The possible structures superimposing the condyle were the eminence from infratemporal crest to sphenoid spine, the eminence from articular tubercle to sphenoid spine, post glenoid process, anterior wall of the external auditory meatus, and mastoid process. None of the structures except mastoid process caused any problem in tracing the contour of the condyle. The part of the condyle with superimposition of the mastoid process was difficult to interpret, and extent of the part spread gradually as the projection angle increased. Nine out of 11 (82%) condyles were not superimposed with the mastoid process when a 30° anterior projection was adopted. This was considered to be the most suitable angle to obtain an anterior-oblique aspect of the mandibular condyle keeping good visibility.
Journal
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- Shika Hoshasen
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Shika Hoshasen 37 (1), 41-48, 1997
Japanese Society for Oral and Maxillofacial Radiology
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Details 詳細情報について
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- CRID
- 1390001204962062848
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- NII Article ID
- 130003753793
- 10024566143
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- NII Book ID
- AN00101479
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- ISSN
- 21856311
- 03899705
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- Text Lang
- ja
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed