Cone beam computed tomography image optimization to detect root fractures in endodontically treated teeth: an in vitro (phantom) study.

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Cone beam computed tomography image optimization to detect root fractures in endodontically treated teeth: an in vitro (phantom) study.

Oral Surg Oral Med Oral Pathol Oral Radiol. 2017 May;123(5):613-620

Authors: Parrone MT, Bechara B, Deahl ST, Ruparel NB, Katkar R, Noujeim M

Abstract
OBJECTIVES: The aim of this study was to evaluate the effect of an optimization filter (OF) and voxel size on the accuracy of root fracture detection.
STUDY DESIGN: Half of 40 endodontically treated roots were fractured, and the other half were left intact. All teeth were randomly placed into 5 bovine ribs. Each rib was scanned with the Planmeca ProMax 3-D using 4 different settings: 75 μm and 100 μm voxel size with and without an OF. Five reviewers reported if a fracture was present by using a 5-point scale. Intra-/interobserver agreement, area under the receiver operative characteristic curve, accuracy, sensitivity, and false-positive rates were analyzed.
RESULTS: High κ-values indicated strong intra-/interobserver agreement. There was no significant difference in fracture detection between any of the evaluated techniques.
CONCLUSIONS: Because of the decreased cost, dose area product, and time required, compared with the other imaging modalities studied, the high-resolution mode (100 μm) without an OF is recommended for root fracture detection in endodontically treated teeth.

PMID: 28407988 [PubMed - in process]

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