Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avis › Tidsskriftartikel › Forskning › peer review
Reliability of radiographic findings in large FOV CBCTs of mandibular third molars as basis for pre-operative patient information. / Matzen, Louise Hauge; Schropp, Lars; Hermann, Louise et al.
I: Acta Odontologica Scandinavica, Bind 80, Nr. 3, 04.2022, s. 210-217.Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avis › Tidsskriftartikel › Forskning › peer review
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TY - JOUR
T1 - Reliability of radiographic findings in large FOV CBCTs of mandibular third molars as basis for pre-operative patient information
AU - Matzen, Louise Hauge
AU - Schropp, Lars
AU - Hermann, Louise
AU - Ingerslev, Janne
AU - Wenzel, Ann
PY - 2022/4
Y1 - 2022/4
N2 - Objective: The aim of this study was to assess the relation between radiographic findings in large field of view (FOV) cone beam computed tomography (CBCT) exams and clinical findings of mandibular third molars in relation to the pre-operative patient information. Material and Methods: Two hundred and nine mandibular third molars in 134 orthognathic patients examined with CBCT were removed. Three observers assessed tooth- and mandibular canal-related variables in CBCT images, and the findings were correlated to clinical findings during surgery for all observers: tooth angulation, number and morphology of roots and close relationship between the tooth and the mandibular canal. Moreover, positive (PPV) and negative (NPV) predictive values and positive (LR+) and negative (LR-) likelihood ratios were calculated for the canal-related variables. Inter- and intra-observer reproducibility was expressed as percentage accordance and kappa-statistics. Results: Generally, there was high correlation between radiographic and clinical tooth-related variables. The opposite was true for the canal-related variables, since the PPV and LR + were low. The highest PPV and LR + were found when the mandibular canal was positioned between the roots of the third molar. Conclusions: Tooth-related findings in CBCT are reliable, whereas mandibular canal-related findings should not affect the information provided to the patient pre-operatively.
AB - Objective: The aim of this study was to assess the relation between radiographic findings in large field of view (FOV) cone beam computed tomography (CBCT) exams and clinical findings of mandibular third molars in relation to the pre-operative patient information. Material and Methods: Two hundred and nine mandibular third molars in 134 orthognathic patients examined with CBCT were removed. Three observers assessed tooth- and mandibular canal-related variables in CBCT images, and the findings were correlated to clinical findings during surgery for all observers: tooth angulation, number and morphology of roots and close relationship between the tooth and the mandibular canal. Moreover, positive (PPV) and negative (NPV) predictive values and positive (LR+) and negative (LR-) likelihood ratios were calculated for the canal-related variables. Inter- and intra-observer reproducibility was expressed as percentage accordance and kappa-statistics. Results: Generally, there was high correlation between radiographic and clinical tooth-related variables. The opposite was true for the canal-related variables, since the PPV and LR + were low. The highest PPV and LR + were found when the mandibular canal was positioned between the roots of the third molar. Conclusions: Tooth-related findings in CBCT are reliable, whereas mandibular canal-related findings should not affect the information provided to the patient pre-operatively.
KW - Molar
KW - cone beam CT
KW - radiography
KW - reliability
KW - third
KW - CONE-BEAM CT
KW - REMOVAL
KW - RISK
KW - SAGITTAL SPLIT OSTEOTOMY
KW - Reproducibility of Results
KW - Humans
KW - Mandible/diagnostic imaging
KW - Tooth, Impacted
KW - Molar, Third/diagnostic imaging
KW - Cone-Beam Computed Tomography/methods
U2 - 10.1080/00016357.2021.1987513
DO - 10.1080/00016357.2021.1987513
M3 - Journal article
C2 - 34649477
VL - 80
SP - 210
EP - 217
JO - Acta Odontologica Scandinavica
JF - Acta Odontologica Scandinavica
SN - 0001-6357
IS - 3
ER -