Diagnostic value of cone beam computed tomography for root canal morphology assessment – a micro-CT based comparison

Mariana Pires; Jorge N.R. Martins; Mário Rito Pereira; Isabel Vasconcelos; Rui Pereira da Costa; Isabel Duarte; António Ginjeira

doi:10.1007/s00784-024-05580-y

Diagnostic value of cone beam computed tomography for root canal morphology assessment – a micro-CT based comparison

Mariana Pires, Jorge N.R. Martins, Mário Rito Pereira, Isabel Vasconcelos, Rui Pereira da Costa, Isabel Duarte, António Ginjeira

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Objectives: The aim of this study was to assess cone beam computed tomography (CBCT) as a root canal anatomy diagnostic tool by comparison with micro-CT gold-standard. Materials and methods: 216 two-rooted mandibular molars were first scanned in a CBCT device (200 μm voxel size) and posteriorly in a micro-CT scanner (19.61 μm). The volumes were sequentially screened to classify main root canal anatomy according to Vertucci classification, and for the presence of lateral canals and apical deltas, in both mesial and distal roots. Results: Both methods revealed a higher prevalence of Vertucci Type II and IV in the mesial root, and Vertucci Type I in the distal root. The percentage of agreement for main root canal anatomy classification between CBCT and micro-CT scores was high (85.2%). Conclusion: Sensibility to detect both lateral canals and apical deltas with CBCT was low. These results attest to the fact that minor anatomical changes might be difficult to identify with CBCT imaging, hampering its diagnostic value.

Original language	English
Article number	201
Pages (from-to)	201
Journal	Clinical Oral Investigations
Volume	28
Issue number	3
DOIs	https://doi.org/10.1007/s00784-024-05580-y
Publication status	Published - Mar 2024
Externally published	Yes

Keywords

CBCT
Diagnosis
Endodontics
Mandibular molars
Micro-CT
Root canal anatomy
Mandible/diagnostic imaging
X-Ray Microtomography
Dental Pulp Cavity/diagnostic imaging
Cone-Beam Computed Tomography/methods
Tooth Root/diagnostic imaging

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title = "Diagnostic value of cone beam computed tomography for root canal morphology assessment – a micro-CT based comparison",

abstract = "Objectives: The aim of this study was to assess cone beam computed tomography (CBCT) as a root canal anatomy diagnostic tool by comparison with micro-CT gold-standard. Materials and methods: 216 two-rooted mandibular molars were first scanned in a CBCT device (200 μm voxel size) and posteriorly in a micro-CT scanner (19.61 μm). The volumes were sequentially screened to classify main root canal anatomy according to Vertucci classification, and for the presence of lateral canals and apical deltas, in both mesial and distal roots. Results: Both methods revealed a higher prevalence of Vertucci Type II and IV in the mesial root, and Vertucci Type I in the distal root. The percentage of agreement for main root canal anatomy classification between CBCT and micro-CT scores was high (85.2%). Conclusion: Sensibility to detect both lateral canals and apical deltas with CBCT was low. These results attest to the fact that minor anatomical changes might be difficult to identify with CBCT imaging, hampering its diagnostic value.",

keywords = "CBCT, Diagnosis, Endodontics, Mandibular molars, Micro-CT, Root canal anatomy, Mandible/diagnostic imaging, X-Ray Microtomography, Dental Pulp Cavity/diagnostic imaging, Cone-Beam Computed Tomography/methods, Tooth Root/diagnostic imaging",

author = "Mariana Pires and Martins, {Jorge N.R.} and Pereira, {M{\'a}rio Rito} and Isabel Vasconcelos and Costa, {Rui Pereira da} and Isabel Duarte and Ant{\'o}nio Ginjeira",

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doi = "10.1007/s00784-024-05580-y",

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AU - Pires, Mariana

AU - Martins, Jorge N.R.

AU - Pereira, Mário Rito

AU - Vasconcelos, Isabel

AU - Costa, Rui Pereira da

AU - Duarte, Isabel

AU - Ginjeira, António

PY - 2024/3

Y1 - 2024/3

N2 - Objectives: The aim of this study was to assess cone beam computed tomography (CBCT) as a root canal anatomy diagnostic tool by comparison with micro-CT gold-standard. Materials and methods: 216 two-rooted mandibular molars were first scanned in a CBCT device (200 μm voxel size) and posteriorly in a micro-CT scanner (19.61 μm). The volumes were sequentially screened to classify main root canal anatomy according to Vertucci classification, and for the presence of lateral canals and apical deltas, in both mesial and distal roots. Results: Both methods revealed a higher prevalence of Vertucci Type II and IV in the mesial root, and Vertucci Type I in the distal root. The percentage of agreement for main root canal anatomy classification between CBCT and micro-CT scores was high (85.2%). Conclusion: Sensibility to detect both lateral canals and apical deltas with CBCT was low. These results attest to the fact that minor anatomical changes might be difficult to identify with CBCT imaging, hampering its diagnostic value.

AB - Objectives: The aim of this study was to assess cone beam computed tomography (CBCT) as a root canal anatomy diagnostic tool by comparison with micro-CT gold-standard. Materials and methods: 216 two-rooted mandibular molars were first scanned in a CBCT device (200 μm voxel size) and posteriorly in a micro-CT scanner (19.61 μm). The volumes were sequentially screened to classify main root canal anatomy according to Vertucci classification, and for the presence of lateral canals and apical deltas, in both mesial and distal roots. Results: Both methods revealed a higher prevalence of Vertucci Type II and IV in the mesial root, and Vertucci Type I in the distal root. The percentage of agreement for main root canal anatomy classification between CBCT and micro-CT scores was high (85.2%). Conclusion: Sensibility to detect both lateral canals and apical deltas with CBCT was low. These results attest to the fact that minor anatomical changes might be difficult to identify with CBCT imaging, hampering its diagnostic value.

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KW - Micro-CT

KW - Root canal anatomy

KW - Mandible/diagnostic imaging

KW - X-Ray Microtomography

KW - Dental Pulp Cavity/diagnostic imaging

KW - Cone-Beam Computed Tomography/methods

KW - Tooth Root/diagnostic imaging

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Diagnostic value of cone beam computed tomography for root canal morphology assessment – a micro-CT based comparison

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