Imaging Science in Dentistry

Korean Academy of Oral and Maxillofacial Radiology (대한영상치의학회)
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Prediction of osteoporosis using fractal analysis on periapical and panoramic radiographs

치근단 및 파노라마 방사선사진에서 프랙탈 분석을 이용한 골다공증 예측

  • Kim, Joo-Yeon (Department of Oral and Maxillofacial Radiology, College of Dentistry, Pusan National University) ;
  • Jung, Yun-Hoa (Department of Oral and Maxillofacial Radiology, College of Dentistry, Pusan National University) ;
  • Nah, Kyung-Soo (Department of Oral and Maxillofacial Radiology, College of Dentistry, Pusan National University)
  • 김주연 (부산대학교 치과대학 구강악안면방사선학교실) ;
  • 정연화 (부산대학교 치과대학 구강악안면방사선학교실) ;
  • 나경수 (부산대학교 치과대학 구강악안면방사선학교실)
  • Published : 2008.09.30
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Abstract

Purpose : The purpose of this study was to investigate whether fractal analysis of periapical and panoramic radiographs was useful in predicting osteoporosis risk. Materials and Methods : 37 postmenoposal women between the age of 42 and 79 were classified as normal and osteoporosis group according to the bone mineral density of lumbar vertebrae and periapical and panoramic radio-graphs were taken. Fractal dimensions at periapical areas of mandibular first molars were calculated to differentiate the two groups. Results : The mean fractal dimensions of normal group on periapical and panoramic radiographs were $1.413{\pm}0.079$, $1.517{\pm}0.071$ each. The mean fractal dimensions of osteoporotic group on periapical and panoramic radiographs were $1.498{\pm}0.086$, $1.388{\pm}0.083$ each. The mean fractal dimension from peripaical radiographs of osteoporotic group was statistically significantly higher than that of normal group. The mean fractal dimension from panoramic radiographs of osteoporotic group was statistically significantly lower than that of normal group. Conclusion : Fractal analysis using periapical and panoramic radiographs was useful in predicting osteoporosis.

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