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Dent. J."],"abstract":"<jats:p>Abstract This study evaluated the effectiveness of the blooming artifact reduction (BAR) filter (e-Vol DX Software, CDT, Bauru, SP, Brazil) for detecting voids in root canals filled with various sealers, using two CBCT devices and micro-CT as a reference. Twenty mandibular incisors with long-oval root canals were filled with AH Plus Jet (AHPJ) or Bio-C Sealer (BCS). Each tooth was placed in the mandibular alveolar socket of a dry skull, covered with Mix-D material, and scanned with VeraView X800 and OP300 Maxio CBCT devices. Micro-CT images served as a reference. Three calibrated examiners assessed the CBCT scans, without and with the BAR filter (intensity level 1 for OP300 Maxio and level 3 for VeraView X800), for void detection using a 5-point scale. Diagnostic values (area under the receiver operating characteristic (ROC) curve, sensitivity, and specificity) were compared using multi-way analysis of variance (p=0.05). Intra- and inter-observer agreement was evaluated using the weighted Kappa index. For OP300, using BAR filter 1 significantly improved ROC curve values for detecting voids in the apical third with AHPJ and BCS (p&lt;0.05). It also increased specificity for detecting voids in the apical third with AHPJ (p&lt;0.05). For VeraView X800, the ROC curve and sensitivity values were unaffected (p&gt;0.05), but using BAR filter 3 significantly enhanced specificity for detecting voids in the cervical\/middle thirds with BCS (p&lt;0.05). The diagnostic performance of the BAR filter is CBCT-device dependent. In OP300 scans, it enhances the detection of voids in the apical third with AHPJ and BCS. In VeraView X800 scans, it improves specificity for detecting voids in the cervical\/middle thirds with BCS.<\/jats:p>","DOI":"10.1590\/0103-644020256780","type":"journal-article","created":{"date-parts":[[2026,1,30]],"date-time":"2026-01-30T16:03:48Z","timestamp":1769789028000},"source":"Crossref","is-referenced-by-count":0,"title":["Effect of the Blooming Artifact Reduction filter on the detection of voids in root canal fillings using cone-beam computed tomography images"],"prefix":"10.1590","volume":"36","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1916-1675","authenticated-orcid":false,"given":"Airton Oliveira","family":"Santos-Junior","sequence":"first","affiliation":[{"name":"S\u00e3o Paulo State University,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6426-9768","authenticated-orcid":false,"given":"Rocharles Cavalcante","family":"Fontenele","sequence":"additional","affiliation":[{"name":"University of Leuven,  Belgium; University of S\u00e3o Paulo,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2023-1589","authenticated-orcid":false,"given":"J\u00e1der Camilo","family":"Pinto","sequence":"additional","affiliation":[{"name":"Centro Universit\u00e1rio Presidente Ant\u00f4nio Carlos,  Brazil; Centro Universit\u00e1rio Presidente Tancredo de Almeida Neves,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7803-4740","authenticated-orcid":false,"given":"Andr\u00e9 Ferreira","family":"Leite","sequence":"additional","affiliation":[{"name":"University of Bras\u00edlia,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0631-3249","authenticated-orcid":false,"given":"Fernanda Ferrari Esteves","family":"Torres","sequence":"additional","affiliation":[{"name":"S\u00e3o Paulo State University,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7916-7900","authenticated-orcid":false,"given":"Karina Ines Medina Carita","family":"Tavares","sequence":"additional","affiliation":[{"name":"S\u00e3o Paulo State University,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4548-7751","authenticated-orcid":false,"given":"Marcelo","family":"Gon\u00e7alves","sequence":"additional","affiliation":[{"name":"S\u00e3o Paulo State University,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0446-2037","authenticated-orcid":false,"given":"Juliane Maria","family":"Guerreiro-Tanomaru","sequence":"additional","affiliation":[{"name":"S\u00e3o Paulo State University,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2574-4706","authenticated-orcid":false,"given":"M\u00e1rio","family":"Tanomaru-Filho","sequence":"additional","affiliation":[{"name":"S\u00e3o Paulo State University,  Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"530","published-online":{"date-parts":[[2025]]},"reference":[{"key":"ref1","doi-asserted-by":"crossref","first-page":"499","DOI":"10.1590\/0103-6440202003328","article-title":"Filling Ability and Flow of Root Canal Sealers: A Micro-Computed Tomographic Study","volume":"31","author":"Pinto JC","year":"2020","journal-title":"Braz Dent J"},{"key":"ref2","article-title":"Effect of obturation technique using a new bioceramic sealer on the presence of voids in flattened root canals","volume":"35","author":"Santos-Junior AO","year":"2021","journal-title":"Braz Oral Res"},{"key":"ref3","doi-asserted-by":"crossref","first-page":"976","DOI":"10.1002\/jemt.23658","article-title":"Micro-CT evaluation of filling of flattened root canals using a new premixed ready-to-use calcium silicate sealer by single-cone technique","volume":"84","author":"Tavares KIMC","year":"2021","journal-title":"Microsc Res Tech"},{"key":"ref4","doi-asserted-by":"crossref","first-page":"547","DOI":"10.1111\/iej.12027","article-title":"Impact of cross-sectional root canal shape on filled canal volume and remaining root filling material after retreatment","volume":"46","author":"Rechenberg DK","year":"2013","journal-title":"Int Endod J"},{"key":"ref5","doi-asserted-by":"crossref","first-page":"675","DOI":"10.1111\/j.1365-2591.2009.01566.x","article-title":"Void detection in root fillings using intraoral analogue, intraoral digital and cone beam CT images","volume":"42","author":"Huybrechts B","year":"2009","journal-title":"Int Endod J"},{"key":"ref6","doi-asserted-by":"crossref","DOI":"10.1259\/dmfr.20200503","article-title":"Influence of CBCT-based volumetric distortion and beam hardening artefacts on the assessment of root canal filling quality in isthmus-containing molars","volume":"50","author":"Rodrigues CT","year":"2021","journal-title":"Dentomaxillofac Radiol"},{"key":"ref7","doi-asserted-by":"crossref","first-page":"326","DOI":"10.1111\/iej.13921","article-title":"Efficacy of imaging techniques for the diagnosis of apical periodontitis: A systematic review","volume":"56","author":"Hilmi A","year":"2023","journal-title":"Int Endod J"},{"key":"ref8","doi-asserted-by":"crossref","first-page":"326","DOI":"10.1016\/j.joen.2010.11.032","article-title":"Endodontic outcome predictors identified with periapical radiographs and cone-beam computed tomography scans","volume":"37","author":"Liang YH","year":"2011","journal-title":"J Endod"},{"key":"ref9","doi-asserted-by":"crossref","first-page":"283","DOI":"10.1016\/j.joen.2019.10.021","article-title":"Can Cone-beam Computed Tomography Change Endodontists' Level of Confidence in Diagnosis and Treatment Planning? 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