CBCT-based assessment of root canal treatment using micro-CT reference images

Alessando Lamira; Jardel Francisco Mazzi-Chaves; Laura Ferreira Pinheiro Nicolielo; Graziela Bianchi Leoni; Alice Correa Silva-Sousa; Yara Terezinha Correa Silva-Sousa; Ruben Pauwels; Nico Buls; Reinhilde Jacobs; Manoel Damiao Sousa-Neto

doi:10.5624/isd.20220019

CBCT-based assessment of root canal treatment using micro-CT reference images

Alessando Lamira, Jardel Francisco Mazzi-Chaves, Laura Ferreira Pinheiro Nicolielo, Graziela Bianchi Leoni, Alice Correa Silva-Sousa, Yara Terezinha Correa Silva-Sousa, Ruben Pauwels, Nico Buls, Reinhilde Jacobs, Manoel Damiao Sousa-Neto^*

^*Corresponding author for this work

Aarhus Institute of Advanced Studies

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

4 Citations (Scopus)

Abstract

Purpose: This study compared the root canal anatomy between cone-beam computed tomography (CBCT) and micro-computed tomography (micro-CT) images before and after biomechanical preparation and root canal filling. Materials and Methods: Isthmus-containing mesial roots of mandibular molars (n=14) were scanned by micro-CT and 3 CBCT devices: 3D Accuitomo 170 (ACC), NewTom 5G (N5G) and NewTom VGi evo (NEVO). Two calibrated observers evaluated the images for 2-dimensional quantitative parameters, the presence of debris or root perforation, and filling quality in the root canal and isthmus. The kappa coefficient, analysis of variance, and the Tukey test were used for statistical analyses (α=5%). Results: Substantial intra-observer agreement (κ=0.63) was found between micro-CT and ACC, N5G, and NEVO. Debris detection was difficult using ACC (42.9%), N5G (40.0%), and NEVO (40%), with no agreement between micro-CT and ACC, N5G, and NEVO (0.05<κ<0.12). After biomechanical preparation, 2.4%-4.8% of CBCT images showed root perforation that was absent on micro-CT. The 2D parameters showed satisfactory reproducibility between micro-CT and ACC, N5G, and NEVO (intraclass correlation coefficient: 0.60-0.73). Partially filled isthmuses were observed in 2.9% of the ACC images, 8.8% of the N5G and NEVO images, and 26.5% of the micro-CT images, with no agreement between micro-CT and ACC, and poor agreement between micro-CT and N5G and NEVO. Excellent agreement was found for area, perimeter, and the major and minor diameters, while the roundness measures were satisfactory. Conclusion: CBCT images aided in isthmus detection and classification, but did not allow their classification after biomechanical preparation and root canal filling.

Original language	English
Journal	Imaging Science in Dentistry
Volume	52
Issue	3
Pages (from-to)	245-258
Number of pages	14
ISSN	2233-7822
DOIs	https://doi.org/10.5624/isd.20220019
Publication status	Published - May 2022

Keywords

ACCURACY
ARTIFACT
BEAM COMPUTED-TOMOGRAPHY
Cone-Beam Computed Tomography
Endodontics
SEGMENTATION
TEETH
X-Ray Microtomography

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10.5624/isd.20220019Licence: CC BY-NC

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@article{e4b2db78902f46aeb7b8bb410691e7e4,

title = "CBCT-based assessment of root canal treatment using micro-CT reference images",

abstract = "Purpose: This study compared the root canal anatomy between cone-beam computed tomography (CBCT) and micro-computed tomography (micro-CT) images before and after biomechanical preparation and root canal filling. Materials and Methods: Isthmus-containing mesial roots of mandibular molars (n=14) were scanned by micro-CT and 3 CBCT devices: 3D Accuitomo 170 (ACC), NewTom 5G (N5G) and NewTom VGi evo (NEVO). Two calibrated observers evaluated the images for 2-dimensional quantitative parameters, the presence of debris or root perforation, and filling quality in the root canal and isthmus. The kappa coefficient, analysis of variance, and the Tukey test were used for statistical analyses (α=5%). Results: Substantial intra-observer agreement (κ=0.63) was found between micro-CT and ACC, N5G, and NEVO. Debris detection was difficult using ACC (42.9%), N5G (40.0%), and NEVO (40%), with no agreement between micro-CT and ACC, N5G, and NEVO (0.05<κ<0.12). After biomechanical preparation, 2.4%-4.8% of CBCT images showed root perforation that was absent on micro-CT. The 2D parameters showed satisfactory reproducibility between micro-CT and ACC, N5G, and NEVO (intraclass correlation coefficient: 0.60-0.73). Partially filled isthmuses were observed in 2.9% of the ACC images, 8.8% of the N5G and NEVO images, and 26.5% of the micro-CT images, with no agreement between micro-CT and ACC, and poor agreement between micro-CT and N5G and NEVO. Excellent agreement was found for area, perimeter, and the major and minor diameters, while the roundness measures were satisfactory. Conclusion: CBCT images aided in isthmus detection and classification, but did not allow their classification after biomechanical preparation and root canal filling.",

keywords = "ACCURACY, ARTIFACT, BEAM COMPUTED-TOMOGRAPHY, Cone-Beam Computed Tomography, Endodontics, SEGMENTATION, TEETH, X-Ray Microtomography",

author = "Alessando Lamira and Mazzi-Chaves, {Jardel Francisco} and Nicolielo, {Laura Ferreira Pinheiro} and Leoni, {Graziela Bianchi} and Silva-Sousa, {Alice Correa} and {Correa Silva-Sousa}, {Yara Terezinha} and Ruben Pauwels and Nico Buls and Reinhilde Jacobs and Sousa-Neto, {Manoel Damiao}",

year = "2022",

month = may,

doi = "10.5624/isd.20220019",

language = "English",

volume = "52",

pages = "245--258",

journal = "Imaging Science in Dentistry",

issn = "2233-7822",

publisher = "Korean Academy of Oral and Maxillofacial Radiology",

number = "3",

}

CBCT-based assessment of root canal treatment using micro-CT reference images. / Lamira, Alessando; Mazzi-Chaves, Jardel Francisco; Nicolielo, Laura Ferreira Pinheiro et al.
In: Imaging Science in Dentistry, Vol. 52, No. 3, 05.2022, p. 245-258.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

TY - JOUR

T1 - CBCT-based assessment of root canal treatment using micro-CT reference images

AU - Lamira, Alessando

AU - Mazzi-Chaves, Jardel Francisco

AU - Nicolielo, Laura Ferreira Pinheiro

AU - Leoni, Graziela Bianchi

AU - Silva-Sousa, Alice Correa

AU - Correa Silva-Sousa, Yara Terezinha

AU - Pauwels, Ruben

AU - Buls, Nico

AU - Jacobs, Reinhilde

AU - Sousa-Neto, Manoel Damiao

PY - 2022/5

Y1 - 2022/5

N2 - Purpose: This study compared the root canal anatomy between cone-beam computed tomography (CBCT) and micro-computed tomography (micro-CT) images before and after biomechanical preparation and root canal filling. Materials and Methods: Isthmus-containing mesial roots of mandibular molars (n=14) were scanned by micro-CT and 3 CBCT devices: 3D Accuitomo 170 (ACC), NewTom 5G (N5G) and NewTom VGi evo (NEVO). Two calibrated observers evaluated the images for 2-dimensional quantitative parameters, the presence of debris or root perforation, and filling quality in the root canal and isthmus. The kappa coefficient, analysis of variance, and the Tukey test were used for statistical analyses (α=5%). Results: Substantial intra-observer agreement (κ=0.63) was found between micro-CT and ACC, N5G, and NEVO. Debris detection was difficult using ACC (42.9%), N5G (40.0%), and NEVO (40%), with no agreement between micro-CT and ACC, N5G, and NEVO (0.05<κ<0.12). After biomechanical preparation, 2.4%-4.8% of CBCT images showed root perforation that was absent on micro-CT. The 2D parameters showed satisfactory reproducibility between micro-CT and ACC, N5G, and NEVO (intraclass correlation coefficient: 0.60-0.73). Partially filled isthmuses were observed in 2.9% of the ACC images, 8.8% of the N5G and NEVO images, and 26.5% of the micro-CT images, with no agreement between micro-CT and ACC, and poor agreement between micro-CT and N5G and NEVO. Excellent agreement was found for area, perimeter, and the major and minor diameters, while the roundness measures were satisfactory. Conclusion: CBCT images aided in isthmus detection and classification, but did not allow their classification after biomechanical preparation and root canal filling.

AB - Purpose: This study compared the root canal anatomy between cone-beam computed tomography (CBCT) and micro-computed tomography (micro-CT) images before and after biomechanical preparation and root canal filling. Materials and Methods: Isthmus-containing mesial roots of mandibular molars (n=14) were scanned by micro-CT and 3 CBCT devices: 3D Accuitomo 170 (ACC), NewTom 5G (N5G) and NewTom VGi evo (NEVO). Two calibrated observers evaluated the images for 2-dimensional quantitative parameters, the presence of debris or root perforation, and filling quality in the root canal and isthmus. The kappa coefficient, analysis of variance, and the Tukey test were used for statistical analyses (α=5%). Results: Substantial intra-observer agreement (κ=0.63) was found between micro-CT and ACC, N5G, and NEVO. Debris detection was difficult using ACC (42.9%), N5G (40.0%), and NEVO (40%), with no agreement between micro-CT and ACC, N5G, and NEVO (0.05<κ<0.12). After biomechanical preparation, 2.4%-4.8% of CBCT images showed root perforation that was absent on micro-CT. The 2D parameters showed satisfactory reproducibility between micro-CT and ACC, N5G, and NEVO (intraclass correlation coefficient: 0.60-0.73). Partially filled isthmuses were observed in 2.9% of the ACC images, 8.8% of the N5G and NEVO images, and 26.5% of the micro-CT images, with no agreement between micro-CT and ACC, and poor agreement between micro-CT and N5G and NEVO. Excellent agreement was found for area, perimeter, and the major and minor diameters, while the roundness measures were satisfactory. Conclusion: CBCT images aided in isthmus detection and classification, but did not allow their classification after biomechanical preparation and root canal filling.

KW - ACCURACY

KW - ARTIFACT

KW - BEAM COMPUTED-TOMOGRAPHY

KW - Cone-Beam Computed Tomography

KW - Endodontics

KW - SEGMENTATION

KW - TEETH

KW - X-Ray Microtomography

UR - http://www.scopus.com/inward/record.url?scp=85139989862&partnerID=8YFLogxK

U2 - 10.5624/isd.20220019

DO - 10.5624/isd.20220019

M3 - Journal article

C2 - 36238704

SN - 2233-7822

VL - 52

SP - 245

EP - 258

JO - Imaging Science in Dentistry

JF - Imaging Science in Dentistry

IS - 3

ER -

CBCT-based assessment of root canal treatment using micro-CT reference images

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Keywords

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