Imaging Science in Dentistry

Korean Academy of Oral and Maxillofacial Radiology (대한영상치의학회)
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The relationship between age and the mandibular cortical bone thickness by using panoramic radiograph

파노라마방사선사진을 이용한 연령별 하악 피질골 두께에 관한 연구

  • Kim, Yun-Suk (Department of Oral and Maxillofacial Radiology, School of Dentistry, and Institute of Oral Bio Science, Chonbuk National University) ;
  • Kim, Kyoung-A (Department of Oral and Maxillofacial Radiology, School of Dentistry, and Institute of Oral Bio Science, Chonbuk National University) ;
  • Koh, Kwang-Joon (Department of Oral and Maxillofacial Radiology, School of Dentistry, and Institute of Oral Bio Science, Chonbuk National University)
  • 김윤숙 (전북대학교 치의학전문대학원 구강악안면방사선학교실 및 구강생체과학연구소) ;
  • 김경아 (전북대학교 치의학전문대학원 구강악안면방사선학교실 및 구강생체과학연구소) ;
  • 고광준 (전북대학교 치의학전문대학원 구강악안면방사선학교실 및 구강생체과학연구소)
  • Received : 2010.04.23
  • Accepted : 2010.05.28
  • Published : 2010.06.30
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Abstract

Purpose : This study was to determine the relationship between age and the mandibular cortical bone thickness on panoramic radiograph. Materials and Methods : Panoramic radiographs of 360 patients (180 men and 180 women) over 20 years old, who visited the Chonbuk National University Hospital from January to December in 2007, were assessed. The subjects were divided into 5 age groups. Five indices such as cortical bone thickness at the gonion (GI), antegonion (AI), and below the mental foramen (MI), the panoramic mandibular index (PMI), the mandibular cortical index (MCI) were measured on panoramic radiographs. Results : All five indices including GI, AI, MI, PMI, and MCI showed significant differences between third decade and over 8 decade groups (p<0.05). PMI, MI and GI showed significant differences with gender statistically (p<0.05). Conclusion : The mandibular cortical bone thickness showed negative correlation with age, and the value of the thickness (PMI, MI, and GI) was greater in men than in women.

Keywords

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