Imaging Science in Dentistry

Korean Academy of Oral and Maxillofacial Radiology (대한영상치의학회)
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Comparison of micro-computerized tomography and cone-beam computerized tomography in the detection of accessory canals in primary molars

  • Acar, Buket (Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Ankara University) ;
  • Kamburoglu, Kivanc (Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Ankara University) ;
  • Tatar, Ilkan (Department of Anatomy, Faculty of Medicine, Hacettepe University) ;
  • Arikan, Volkan (Department of Pediatric Dentistry, Faculty of Dentistry, Kirikkale University) ;
  • Celik, Hakan Hamdi (Department of Anatomy, Faculty of Medicine, Hacettepe University) ;
  • Yuksel, Selcen (Department of Biostatistics, Faculty of Medicine, Yildirim Beyazit University) ;
  • Ozen, Tuncer (Department of Dentomaxillofacial Radiology, Gulhane Military Hospital, Dental Clinics)
  • Received : 2015.04.05
  • Accepted : 2015.06.22
  • Published : 2015.12.31
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Abstract

Purpose: This study was performed to compare the accuracy of micro-computed tomography (CT) and cone-beam computed tomography (CBCT) in detecting accessory canals in primary molars. Materials and Methods: Forty-one extracted human primary first and second molars were embedded in wax blocks and scanned using micro-CT and CBCT. After the images were taken, the samples were processed using a clearing technique and examined under a stereomicroscope in order to establish the gold standard for this study. The specimens were classified into three groups: maxillary molars, mandibular molars with three canals, and mandibular molars with four canals. Differences between the gold standard and the observations made using the imaging methods were calculated using Spearman's rho correlation coefficient test. Results: The presence of accessory canals in micro-CT images of maxillary and mandibular root canals showed a statistically significant correlation with the stereomicroscopic images used as a gold standard. No statistically significant correlation was found between the CBCT findings and the stereomicroscopic images. Conclusion: Although micro-CT is not suitable for clinical use, it provides more detailed information about minor anatomical structures. However, CBCT is convenient for clinical use but may not be capable of adequately analyzing the internal anatomy of primary teeth.

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References

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