대한구강악안면방사선학회

Korean Academy of Oral and Maxillofacial Radiology

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표준필름과 Orthopantomograph의 상확대에 관한 비교 연구
저자 : 김영태, 박태원
1986년|16권 1호|Page : 25-30|조회수 272
Full Text : 1986_25.pdf (229.2K)
TI : Relationship of image magnification between periapical standard film and orthopantomogram

 AU : Kim young tae, park, tae won
 AD : Dept. of Oral Radiology, College of Dentistry Seoul National University
 SO : JKAOMFR. 1986;16(1):25-30
 ISSN : 1225-049X
 PY : 1986
 LA : KOREAN
 CP : KOREA

 AB : The author studied the magnification ratio of teeth length in orthopantomogram through intraoral film taken by standardized paralleling technique. In this study, intraoral radiograph and orthopantomogram were taken in 2 cases of dry skull and 36 adults(504 teeth).
 The obtained results were as follows:
 1. In case of dry skull, the magnification ratio of standard films was 4.6% to 5.9% and that of Orthopantomograph 5 was 15.1% to 33.1%. The magnification ratio of to the standard film was 9.2% to 26.5%
 2. In case of adults, the magnification ratio Orthopantomograph 5 to the standard films was 9.5% to 24.6%
 3. There were no significant difference in magnification between left and right.
 4. Anterior teeth had lesser magnification than teeth.
 5. It was considered that teeth length showed in Orthopantomograph 5 was magnified 15.4% to 31.3% than actual teeth length.

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