Imaging Science in Dentistry

  • 제54권4호
  • /
  • Pages.370-380
  • /
  • 2024
  • /
  • 2233-7822(pISSN)
  • /
  • 2233-7830(eISSN)
대한영상치의학회 (Korean Academy of Oral and Maxillofacial Radiology)
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Analysis of root number and canal morphology of maxillary premolars using cone-beam computed tomography

  • Yun-Hoa Jung (Department of Oral and Maxillofacial Radiology, School of Dentistry, Pusan National University) ;
  • Jae-Joon Hwang (Department of Oral and Maxillofacial Radiology, School of Dentistry, Pusan National University) ;
  • Ji-Soo Lee (Department of Oral and Maxillofacial Radiology, School of Dentistry, Pusan National University) ;
  • Bong-Hae Cho (Department of Oral and Maxillofacial Radiology, School of Dentistry, Pusan National University)
  • 투고 : 2024.07.22
  • 심사 : 2024.09.06
  • 발행 : 2024.12.31
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초록

Purpose: This study aimed to evaluate the number of roots and type of root canals in maxillary first and second premolars within a selected Korean population utilizing cone-beam computed tomography (CBCT). Additionally, it sought to investigate potential differences in these features according to sex and tooth type. Materials and Methods: CBCT images of 585 maxillary first premolars and 578 maxillary second premolars from 303 patients were retrospectively reviewed. The number of roots was classified based on root morphology, and canal configurations were categorized into 8 types according to the Vertucci classification. For statistical analysis, chi-square or Fisher exact tests were employed to compare root number and canal morphology according to sex and tooth type. Results: CBCT analysis revealed that 71.5% of maxillary first premolars and 97.6% of maxillary second premolars had 1 root. The most common canal configuration in maxillary first premolars was Vertucci type IV (42.6%), whereas type I predominated in maxillary second premolars (76.5%). Significant differences in root number and canal configurations were found between men and women (P<0.05), with single roots and Vertucci type I canals more commonly observed in women. Conclusion: Both maxillary first premolars and maxillary second premolars typically had 1 root, with a smaller percentage possessing 2 roots. Significant sex differences were observed in root number and canal type. This study highlights the variability in root number and canal configuration, emphasizing the importance of recognizing these variations to achieve successful endodontic treatment.

키워드

과제정보

This work was supported by a 2-Year Research Grant from Pusan National University.

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