Imaging Science in Dentistry

Korean Academy of Oral and Maxillofacial Radiology (대한영상치의학회)
권호 표지

The distribution of C-shaped canal system in Korean population with CT image

CT사진을 이용한 한국인의 C형 치근관의 분포에 대한 연구

  • Jun, Rok-Weon (Department of Dentistry, School of Dentistry, Seoul National University) ;
  • Huh, Kyung-Hoe (Department of Oral and Maxillofacial Radiology, Dental Research Institute, School of Dentistry, Seoul National University) ;
  • Yi, Won-Jin (Department of Oral and Maxillofacial Radiology, Dental Research Institute and BK21, School of Dentistry, Seoul National University) ;
  • Heo, Min-Suk (Department of Oral and Maxillofacial Radiology, Dental Research Institute, School of Dentistry, Seoul National University) ;
  • Lee, Sam-Sun (Department of Oral and Maxillofacial Radiology, Dental Research Institute and BK21, School of Dentistry, Seoul National University) ;
  • Choi, Soon-Chul (Department of Oral and Maxillofacial Radiology, Dental Research Institute, School of Dentistry, Seoul National University)
  • 전록원 (서울대학교 치의학 전문대학원) ;
  • 허경회 (서울대학교치의학 전문대학원, 구강악안면방사선학교실, 치학연구소) ;
  • 이원진 (서울대학교 치의학 전문대학원 구강악안면방사선학교실, 치학연구소 및 BK21) ;
  • 허민석 (서울대학교치의학 전문대학원, 구강악안면방사선학교실, 치학연구소) ;
  • 이삼선 (서울대학교 치의학 전문대학원 구강악안면방사선학교실, 치학연구소 및 BK21) ;
  • 최순철 (서울대학교치의학 전문대학원, 구강악안면방사선학교실, 치학연구소)
  • Published : 2009.06.30
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Abstract

Purpose: To investigate the incidence and prevalence of C-shaped root canal using computed tomographic images of head and neck in Korean population. Materials and Methods : Regardless of each examination purpose, randomly selected 268 examples which have serial axial computed tomographic images with 8 normal molars in maxilla and mandible were selected and investigated. Defined C-shaped root canal and we could get 82 proper image examples in view of this definition. These were detected and investigated of incidence and prevalence of C-shaped root canal. Results: C-shaped root canals were found in 82 examples among 268 (30.6%) and 147 teeth. They were only found on molar area, and the highest incidence was 37.41% of left mandibular second molars, and the lowest was 2.04% of right maxillary second molars. On prevalence of tooth position, mandibular second molar was the highest, 65% of C-shaped root canal teeth and maxillary second molar was 6% the lowest. Conclusion: 31% of randomly selected CT images no considering check-up reason have C-shaped root canals. The C-shaped root canals of mandibular second molar are found most frequently and they are also detectable on maxilla. On Korean population, C-shaped root canals are one of conditions that have to concern with dental treatment for it appears at a high prevalence relatively. (Korean J Oral Maxillofac Radiol 2009; 39: 75-9)

Keywords

References

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