Assessing the Impact of the Metal Artifact Reduction Tool on Detecting Furcation Lesions in Maxillary Molars with Different Intracanal Posts: An Ex Vivo Cone-beam Computed Tomography Study.

Autor:	Bastos MF; Department of Pathology and Oral Diagnosis, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil., Visconti MA; Department of Pathology and Oral Diagnosis, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil., Pinto RR; Department of Pathology and Oral Diagnosis, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil., Junqueira RB; Department of Dentistry, Federal University of Juiz de Fora/GV Campus, Governador Valadares, Brazil., Verner FS; Department of Dentistry, Federal University of Juiz de Fora/GV Campus, Governador Valadares, Brazil. Electronic address: francielle.verner@ufjf.br.
Jazyk:	angličtina
Zdroj:	Journal of endodontics [J Endod] 2024 Jun; Vol. 50 (6), pp. 835-843. Date of Electronic Publication: 2024 Feb 21.
DOI:	10.1016/j.joen.2024.02.009
Abstrakt:	Introduction: Considering the potential image compromise and diagnostic challenges posed by metals, this study aimed to assess the efficacy of the metal artifact reduction (MAR) tool in cone-beam computed tomography examinations for detecting furcation lesions in upper molars treated endodontically and restored with different intracanal posts. Methods: This ex vivo study used 45 endodontically treated maxillary first molars, categorized into the following3 groups (n = 15): control (without intracanal post), metal post, and fiberglass post. Simulations were conducted in the laboratory to replicate alveolar bone, periodontal ligament, and grade I, II, and III furcation lesions. Cone-beam computed tomography scans were obtained with and without the MAR tool, and the furcation lesions were evaluated considering a 5-point Likert scale. Data were analyzed at 5%. Results: In the control group, there was no influence of MAR (P > .05); grade II lesions were not diagnosed, and grade III lesions were the most detected (P < .05). In the metal post group with MAR, grade III lesions were diagnosed more frequently than I and II (P < .05) and grade III without MAR (P < .05). In the fiberglass post group, the diagnosis of grade I lesions decreased with MAR (P < .05), and without MAR, grade III was most diagnosed (P < .05); grade III lesions were the most diagnosed (P < .05). Conclusions: The MAR tool was only effective for diagnosing grade III furcation lesions, regardless of the intracanal material. Its application for grade I and II lesions did not contribute to improved diagnosis. Furthermore, in the fiberglass post group with grade I lesions, the MAR tool negatively affected the detection of the lesions. (Copyright © 2024 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.)
Databáze:	MEDLINE
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