Evidence map›Paper›PMID 41491924›Full record

ArticleOral radiology2026

Influence of automatic exposure compensation tool of digital radiographic systems on the diagnosis of periapical lesions in teeth restored with metal post.

D A S Rodrigues, G C G Alcebíades, A Farias-Gomes, R C Fontenele, H Gaêta-Araujo

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Article in Oral radiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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5 authors.

D A S RodriguesDepartment of Stomatology, Public Health, and Forensic Dentistry, Division of Oral Radiology, Ribeirao Preto School of Dentistry, University of Sao Paulo (USP), Ribeirao Preto, Sao Paulo, 14040-904, Brazil.
G C G AlcebíadesDepartment of Restorative Dentistry, Ribeirao Preto School of Dentistry, University of Sao Paulo (USP), Ribeirao Preto, Sao Paulo, Brazil.
A Farias-GomesDepartment of Oral Diagnosis, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Sao Paulo, Brazil.
R C FonteneleDepartment of Stomatology, Public Health, and Forensic Dentistry, Division of Oral Radiology, Ribeirao Preto School of Dentistry, University of Sao Paulo (USP), Ribeirao Preto, Sao Paulo, 14040-904, Brazil.
H Gaêta-AraujoDepartment of Stomatology, Public Health, and Forensic Dentistry, Division of Oral Radiology, Ribeirao Preto School of Dentistry, University of Sao Paulo (USP), Ribeirao Preto, Sao Paulo, 14040-904, Brazil. hugogaeta@hotmail.com.

Funding

Universidade de São Paulo Unified Scholarship Program (2023/2024)
6 · The paper itself

Abstract

objectiveAutomatic exposure compensation (AEC) in digital radiographic systems adjusts the greyscale values of the image to correct for underexposure or overexposure, ensuring consistent image brightness and contrast. High-density materials, such as metal posts, can trigger greyscale correction promoted by AEC, potentially influencing radiographic diagnosis. This study aimed to assess whether the enhancement of AEC in endodontically treated tooth restored with metal post affects the detection of simulated periapical lesions using different digital radiographic systems. MATERIALS AND

methodsThe sample consisted of periapical radiographs of a tooth, with and without metal post, inserted into simulated dental sockets in 15 bovine ribs, without and with periapical lesions simulated using a mechanical-chemical method. Radiographs were obtained using a phosphor-storage plate system (KaVo eXam) and a sensor (RVG 5200). After acquisition, the images were exported, randomized, and independently evaluated by six observers, who scored the presence of periapical lesions on a 5-point scale. The area under the receiver operating characteristic curve (AUROC), accuracy, sensitivity, and specificity were calculated for each tested condition. Diagnostic values were compared using analysis of variance, setting the significance level at 5%.

resultsRegardless of the presence of the metal post and the AEC enhancement, there was no statistically significant difference in diagnostic values (AUROC, accuracy, sensitivity, and specificity; p ≥ 0.05) for both digital radiographic systems.

conclusionsRadiographic enhancement produced by AEC in the presence of a metal post does not impair the diagnosis of periapical lesions in the digital radiographic systems tested.

Indexed as

Periapical DiseasesPost and Core TechniqueRadiography, Dental, DigitalAnimalsCattleMetalsSensitivity and SpecificityMetalsComputer-aided image processingDigital dental radiographyPeriapical lesionRadiographic image intensification

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.