書誌事項
- タイトル別名
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- Panoramic Radiography of the Temporomandibular Joint. Part 2: A Study of Horizontal Optimum Angle of X-ray Beam to Mandibular Condyle.
- 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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抄録
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.
収録刊行物
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- 歯科放射線
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歯科放射線 37 (1), 41-48, 1997
特定非営利活動法人 日本歯科放射線学会
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詳細情報 詳細情報について
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- CRID
- 1390001204962062848
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- NII論文ID
- 130003753793
- 10024566143
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- NII書誌ID
- AN00101479
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- ISSN
- 21856311
- 03899705
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可