대한구강악안면방사선학회

Korean Academy of Oral and Maxillofacial Radiology

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구내 X-선 촬영술에 있어서 실패의 원인분석에 관한 연구
저자 : 강용상
1977년|7권 1호|Page : 27-30|조회수 549
Full Text : 1977_27.pdf (373.0K)
TI :The study of technical failure of intraoral roentgenography

 AU : Kang YS
 AD : Department of Radiology, Infirmary of Dental College, Seoul National University
 SO : JKAMFR. 1977;7(1):27-30
 ISSN :
 PY : 1977
 LA : KOREAN
 CP : KOREA

 AB : To insure accuracy in dental roentgenographs, the patient's head position and angulation of the x-ray tube is impo rtant. In 1907 Cieszynski applied the rule of isometry to dental radiography, and established that in the production of an accurate image of a tooth, the central ray must be projected perpendicularly to a plane bisecting angle formed by the longitudinal axis of the tooth and the film plane. Proper exposure of the film is a part of the production of a good de ntal radiograph, and correct processing also makes an essential contribution to the quality of the radiograph.
 The author analysed the failure of exposure and processing results, and recommends followings.
 1. The patient head must be positioned that occlusal plane are parallel with the horizontal floor.
 2. Central ray must be projected to the objective tooth and supporting structure and projected as perpendicularly to tooth axis and film surface as possible.
 3. In processing, the temperature of the solution and the processing time must be correct.

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