Imaging Science in Dentistry

  • 제44권3호
  • /
  • Pages.221-227
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  • 2014
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  • 2233-7822(pISSN)
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  • 2233-7830(eISSN)
대한영상치의학회 (Korean Academy of Oral and Maxillofacial Radiology)
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Cone-beam computed tomography analysis of root and canal morphology of mandibular premolars in a Spanish population

  • 투고 : 2013.10.07
  • 심사 : 2014.05.26
  • 발행 : 2014.09.30
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초록

Purpose: This study aimed to investigate the clinical anatomy of lower premolar roots in a Spanish population by using cone-beam computed tomography (CBCT), correlating findings with patient gender and tooth type. Materials and Methods: Using 70 CBCT images, we evaluated 126 healthy, untreated, well-developed lower premolars. The number and morphology of roots and root canals, and the foramina number were assessed. Results for gender and tooth type were compared using the chi-squared and ANOVA tests. Results: The average length of teeth and roots was significantly higher in men (p=0.00). All 126 premolars had a single root. One canal was found in 83.3% of the premolars, with no gender or tooth type differences; Vertucci configuration types I and V were the most prevalent. The first premolars showed significantly greater variability than the second premolars (p=0.03). A single apical foramen was found in 89.7% of the premolars, with no differences by tooth type. Women had a significantly higher prevalence of two apical foramina than men (p=0.04). Some degree of curvature was observed in 65% of the premolars, with no differences by gender or tooth type. A root angle of more than $20^{\circ}$ was found in 12.98% of the premolars, without any differences by gender or tooth. Conclusion: All premolars were single-rooted. One canal had the most prevalent morphology. More variability in canal anatomy was found in the first premolars. Curvatures greater than $20^{\circ}$ were found at less than 5 mm from the apex.

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참고문헌

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  2. Evaluation of Root Canal Morphology of Mandibular First and Second Premolars Using Cone Beam Computed Tomography in a Defined Group of Dental Patients in Iran vol.2017, pp.None, 2014, https://doi.org/10.1155/2017/1504341
  3. A Cone-Beam Computed Tomography Scanning of the Root Canal System of Permanent Teeth among the Moscow Population vol.2018, pp.None, 2014, https://doi.org/10.1155/2018/2615746
  4. Root canal morphology of permanent teeth in a Malaysian subpopulation using cone-beam computed tomography vol.19, pp.None, 2014, https://doi.org/10.1186/s12903-019-0710-z
  5. Preferred Reporting Items for Epidemiologic Cross-sectional Studies on Root and Root Canal Anatomy Using Cone-beam Computed Tomographic Technology: A Systematized Assessment vol.46, pp.7, 2020, https://doi.org/10.1016/j.joen.2020.03.020
  6. Root canal morphology of the mandibular second premolar: a systematic review and meta-analysis vol.21, pp.1, 2014, https://doi.org/10.1186/s12903-021-01668-z