Comparative accuracy of the Clearing Technique, CBCT and Micro‐CT methods in studying the mesial root canal configuration of mandibular first molars

Aims To compare the accuracy of the clearing technique and cone beam computed tomography (CBCT) in the assessment of root canal configurations using micro‐computed tomography (micro‐CT) imaging system as the reference standard. Methodology Thirty‐two mesial roots of mandibular first molars, selected...

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Veröffentlicht in:	International endodontic journal Jg. 50; H. 1; S. 90 - 96
Hauptverfasser:	Ordinola‐Zapata, R., Bramante, C. M., Versiani, M. A., Moldauer, B. I., Topham, G., Gutmann, J. L., Nuñez, A., Duarte, M. A. Hungaro, Abella, F.
Format:	Journal Article
Sprache:	Englisch
Veröffentlicht:	England Wiley Subscription Services, Inc 01.01.2017
Schlagworte:	Accuracy Anatomy Computed tomography Cone-Beam Computed Tomography Data processing dental anatomy Dental Pulp Cavity - anatomy & histology Dental Pulp Cavity - diagnostic imaging Dental roots Endodontics Humans Mandible mandibular molars Methods microcomputed tomography Molar - anatomy & histology Molar - diagnostic imaging Molars Population studies Root Canal Preparation - methods Root canals Teeth Tomography Tooth Root - anatomy & histology Tooth Root - diagnostic imaging X-Ray Microtomography mandibular molars microcomputed tomography dental anatomy cone beam computed tomography
ISSN:	0143-2885, 1365-2591
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Abstract	Aims To compare the accuracy of the clearing technique and cone beam computed tomography (CBCT) in the assessment of root canal configurations using micro‐computed tomography (micro‐CT) imaging system as the reference standard. Methodology Thirty‐two mesial roots of mandibular first molars, selected on the basis of micro‐CT scans (voxel size: 19.6 μm) and presenting several canal configurations, were evaluated using 2 CBCT scanners (voxels sizes: 120 μm and 150 μm) followed by the clearing technique. Two examiners analysed the data from each method and classified the anatomical configuration of the mesial canal according to Vertucci's system. Data were compared using Fisher's exact and chi‐square tests. Reliability for each assessment was verified by the kappa test, and significance level was set at 5%. Results Kappa value indicated a high level of agreement between the examiners. Detection of type I configurations was significantly lower in cleared teeth (P < 0.05), whilst type II root canals were detected in all specimens by both tests (P > 0.05). In mesial roots with variable anatomical configurations, CBCT and the clearing method were significantly less accurate than the reference standard (P < 0.05). Conclusion Within the tooth population studied, accuracy of identifying mesial root canal configuration was influenced greatly by the evaluation method and the type of anatomy. Detection of type I configurations in cleared teeth was significantly lower, whilst type II configurations were detected in all specimens by both methods. In mesial roots with variable anatomical configurations, neither CBCT nor clearing methods were accurate for detecting the actual root canal anatomy.
AbstractList	Aims To compare the accuracy of the clearing technique and cone beam computed tomography (CBCT) in the assessment of root canal configurations using micro-computed tomography (micro-CT) imaging system as the reference standard. Methodology Thirty-two mesial roots of mandibular first molars, selected on the basis of micro-CT scans (voxel size: 19.6 µm) and presenting several canal configurations, were evaluated using 2 CBCT scanners (voxels sizes: 120 µm and 150 µm) followed by the clearing technique. Two examiners analysed the data from each method and classified the anatomical configuration of the mesial canal according to Vertucci's system. Data were compared using Fisher's exact and chi-square tests. Reliability for each assessment was verified by the kappa test, and significance level was set at 5%. Results Kappa value indicated a high level of agreement between the examiners. Detection of type I configurations was significantly lower in cleared teeth (P < 0.05), whilst type II root canals were detected in all specimens by both tests (P > 0.05). In mesial roots with variable anatomical configurations, CBCT and the clearing method were significantly less accurate than the reference standard (P < 0.05). Conclusion Within the tooth population studied, accuracy of identifying mesial root canal configuration was influenced greatly by the evaluation method and the type of anatomy. Detection of type I configurations in cleared teeth was significantly lower, whilst type II configurations were detected in all specimens by both methods. In mesial roots with variable anatomical configurations, neither CBCT nor clearing methods were accurate for detecting the actual root canal anatomy. To compare the accuracy of the clearing technique and cone beam computed tomography (CBCT) in the assessment of root canal configurations using micro-computed tomography (micro-CT) imaging system as the reference standard. Thirty-two mesial roots of mandibular first molars, selected on the basis of micro-CT scans (voxel size: 19.6 μm) and presenting several canal configurations, were evaluated using 2 CBCT scanners (voxels sizes: 120 μm and 150 μm) followed by the clearing technique. Two examiners analysed the data from each method and classified the anatomical configuration of the mesial canal according to Vertucci's system. Data were compared using Fisher's exact and chi-square tests. Reliability for each assessment was verified by the kappa test, and significance level was set at 5%. Kappa value indicated a high level of agreement between the examiners. Detection of type I configurations was significantly lower in cleared teeth (P < 0.05), whilst type II root canals were detected in all specimens by both tests (P > 0.05). In mesial roots with variable anatomical configurations, CBCT and the clearing method were significantly less accurate than the reference standard (P < 0.05). Within the tooth population studied, accuracy of identifying mesial root canal configuration was influenced greatly by the evaluation method and the type of anatomy. Detection of type I configurations in cleared teeth was significantly lower, whilst type II configurations were detected in all specimens by both methods. In mesial roots with variable anatomical configurations, neither CBCT nor clearing methods were accurate for detecting the actual root canal anatomy. AIMSTo compare the accuracy of the clearing technique and cone beam computed tomography (CBCT) in the assessment of root canal configurations using micro-computed tomography (micro-CT) imaging system as the reference standard.METHODOLOGYThirty-two mesial roots of mandibular first molars, selected on the basis of micro-CT scans (voxel size: 19.6 μm) and presenting several canal configurations, were evaluated using 2 CBCT scanners (voxels sizes: 120 μm and 150 μm) followed by the clearing technique. Two examiners analysed the data from each method and classified the anatomical configuration of the mesial canal according to Vertucci's system. Data were compared using Fisher's exact and chi-square tests. Reliability for each assessment was verified by the kappa test, and significance level was set at 5%.RESULTSKappa value indicated a high level of agreement between the examiners. Detection of type I configurations was significantly lower in cleared teeth (P < 0.05), whilst type II root canals were detected in all specimens by both tests (P > 0.05). In mesial roots with variable anatomical configurations, CBCT and the clearing method were significantly less accurate than the reference standard (P < 0.05).CONCLUSIONWithin the tooth population studied, accuracy of identifying mesial root canal configuration was influenced greatly by the evaluation method and the type of anatomy. Detection of type I configurations in cleared teeth was significantly lower, whilst type II configurations were detected in all specimens by both methods. In mesial roots with variable anatomical configurations, neither CBCT nor clearing methods were accurate for detecting the actual root canal anatomy. Aims To compare the accuracy of the clearing technique and cone beam computed tomography (CBCT) in the assessment of root canal configurations using micro‐computed tomography (micro‐CT) imaging system as the reference standard. Methodology Thirty‐two mesial roots of mandibular first molars, selected on the basis of micro‐CT scans (voxel size: 19.6 μm) and presenting several canal configurations, were evaluated using 2 CBCT scanners (voxels sizes: 120 μm and 150 μm) followed by the clearing technique. Two examiners analysed the data from each method and classified the anatomical configuration of the mesial canal according to Vertucci's system. Data were compared using Fisher's exact and chi‐square tests. Reliability for each assessment was verified by the kappa test, and significance level was set at 5%. Results Kappa value indicated a high level of agreement between the examiners. Detection of type I configurations was significantly lower in cleared teeth (P < 0.05), whilst type II root canals were detected in all specimens by both tests (P > 0.05). In mesial roots with variable anatomical configurations, CBCT and the clearing method were significantly less accurate than the reference standard (P < 0.05). Conclusion Within the tooth population studied, accuracy of identifying mesial root canal configuration was influenced greatly by the evaluation method and the type of anatomy. Detection of type I configurations in cleared teeth was significantly lower, whilst type II configurations were detected in all specimens by both methods. In mesial roots with variable anatomical configurations, neither CBCT nor clearing methods were accurate for detecting the actual root canal anatomy.
Author	Topham, G. Ordinola‐Zapata, R. Versiani, M. A. Gutmann, J. L. Nuñez, A. Duarte, M. A. Hungaro Bramante, C. M. Moldauer, B. I. Abella, F.
Author_xml	– sequence: 1 givenname: R. orcidid: 0000-0001-9738-0828 surname: Ordinola‐Zapata fullname: Ordinola‐Zapata, R. email: ronaldordinola@usp.br organization: Larkin Community Hospital – sequence: 2 givenname: C. M. surname: Bramante fullname: Bramante, C. M. organization: University of São Paulo – sequence: 3 givenname: M. A. surname: Versiani fullname: Versiani, M. A. organization: University of São Paulo – sequence: 4 givenname: B. I. surname: Moldauer fullname: Moldauer, B. I. organization: Larkin Community Hospital – sequence: 5 givenname: G. surname: Topham fullname: Topham, G. organization: Universitat Internacional de Cataluña – sequence: 6 givenname: J. L. surname: Gutmann fullname: Gutmann, J. L. organization: Texas A&M University System Health Science Center – sequence: 7 givenname: A. surname: Nuñez fullname: Nuñez, A. organization: Universitat Internacional de Cataluña – sequence: 8 givenname: M. A. Hungaro surname: Duarte fullname: Duarte, M. A. Hungaro organization: University of São Paulo – sequence: 9 givenname: F. surname: Abella fullname: Abella, F. organization: Universitat Internacional de Cataluña
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Copyright	2015 International Endodontic Journal. Published by John Wiley & Sons Ltd 2015 International Endodontic Journal. Published by John Wiley & Sons Ltd. Copyright © 2017 International Endodontic Journal. Published by John Wiley & Sons Ltd
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Snippet	Aims To compare the accuracy of the clearing technique and cone beam computed tomography (CBCT) in the assessment of root canal configurations using... To compare the accuracy of the clearing technique and cone beam computed tomography (CBCT) in the assessment of root canal configurations using micro-computed... Aims To compare the accuracy of the clearing technique and cone beam computed tomography (CBCT) in the assessment of root canal configurations using... AIMSTo compare the accuracy of the clearing technique and cone beam computed tomography (CBCT) in the assessment of root canal configurations using...
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SubjectTerms	Accuracy Anatomy Computed tomography Cone-Beam Computed Tomography Data processing dental anatomy Dental Pulp Cavity - anatomy & histology Dental Pulp Cavity - diagnostic imaging Dental roots Endodontics Humans Mandible mandibular molars Methods microcomputed tomography Molar - anatomy & histology Molar - diagnostic imaging Molars Population studies Root Canal Preparation - methods Root canals Teeth Tomography Tooth Root - anatomy & histology Tooth Root - diagnostic imaging X-Ray Microtomography
Title	Comparative accuracy of the Clearing Technique, CBCT and Micro‐CT methods in studying the mesial root canal configuration of mandibular first molars
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