Journal of Korean Academy of Oral and Maxillofacial Radiology (치과방사선)

Korean Academy of Oral and Maxillofacial Radiology (대한영상치의학회)
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COMPARISON OF RELATIONSHIPS BETWEEN ANTRAL FLOOR AND MAXILLARY ROOT APEX IN BISECTING AND PANORAMIC TECHNIQUES

구내법과 파노라마법에 의한 상악치근과 상악동저의 관계 비교

  • You Dong Soo (Department of Oral Radiology, College of Dentistry, Seoul National University) ;
  • Kim In Soo (Department of Oral Radiology, College of Dentistry, Seoul National University)
  • 유동수 (서울대학교 치과대학 치과방사선학교실) ;
  • 김인수 (서울대학교 치과대학 치과방사선학교실)
  • Published : 1986.12.01
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Abstract

This study was performed to compare the difference of intraoral bisecting and panoramic techniques in evaluating the relationship of antral floor and maxillary roots. The vertical distances from maxillary root apices to antral floor were measured on both orthopantomograms and bisecting projections obtained from fifty subjects. The results were as follows, 1. Tooth lengths measured on orthopantomogram were larger than on bisecting projection and the magnification ratios were 1.08-1.17. 2. The dimensions from maxillary root apices to antral floor measured on orthopantomogram were larger than on bisecting projection. 3. The above results held true regardless of age and sex.

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