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파노라마 촬영기종에 따른 악골내 상 확대의 비교
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  • 파노라마 촬영기종에 따른 악골내 상 확대의 비교
  • COMPARISON OF THE IMAGE MAGNIFICATION IN THE JAWS ACCORDING TO THE TYPES OF PANORAMIC MACHINES
저자명
하춘호,최갑식,김진수,Ha. Choon Ho,Choi. Karp Shik,Kim. Chin Soo
간행물명
齒科放射線
권/호정보
1991년|21권 2호|pp.287-296 (10 pages)
발행정보
대한구강악안면방사선학회
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

The purpose of this experiments is to compare the vertical and horizontal magnification, and the distortion of the radiographic image according to the types of panoramic machines. Total 70 radiographs, 10 radiographs out of 7 panoramic machines respectively, were taken from the dry skull with metal balls in the periapical areas of the central incisor, the canine, the second premolar, and the second molar in the maxilla and the mandible. And the author evaluated the vertical and horizontal magnification degrees, and the distortion degrees of radiographic images obtained from each panoramic machine. The results were as follows: There were no significant differences in the vertical and horizontal magnification degrees on the various portions of the jaws (p> 0.05). But there were higher magnification degrees in the Panoura 10C, Panograph Ⅱ, and Veraview than those in other panoramic machines. The lowest average magnification degree was 20.27% vertically, 20.94% horizontally using the Panoradix. The highest average magnification degree was 27.64% vertically, 28.48% horizontally using the Panograph Ⅱ. The lowest distortion was shown using the Panoura 10C in the maxilla, but there was not statistically significant difference between the panoramic machines in the mandible (p>0.05). There were no differences in the vertical and horizontal magnification degrees according to the types of the rotation centers.