{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,2]],"date-time":"2026-11-02T20:10:48Z","timestamp":1793650248984,"version":"4.5.1"},"reference-count":40,"publisher":"FapUNIFESP (SciELO)","license":[{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"am","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Coordination of Improvement of Higher Education Personnel - CAPES","award":["001"],"award-info":[{"award-number":["001"]}]},{"name":"Coordination of Improvement of Higher Education Personnel - CAPES","award":["#88887.891846\/2023-00"],"award-info":[{"award-number":["#88887.891846\/2023-00"]}]},{"name":"Coordination of Improvement of Higher Education Personnel - CAPES","award":["#304665\/2022-3"],"award-info":[{"award-number":["#304665\/2022-3"]}]},{"DOI":"10.13039\/501100002322","name":"CAPES","doi-asserted-by":"crossref","award":["001"],"award-info":[{"award-number":["001"]}],"id":[{"id":"10.13039\/501100002322","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100002322","name":"CAPES","doi-asserted-by":"crossref","award":["#88887.891846\/2023-00"],"award-info":[{"award-number":["#88887.891846\/2023-00"]}],"id":[{"id":"10.13039\/501100002322","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100002322","name":"CAPES","doi-asserted-by":"crossref","award":["#304665\/2022-3"],"award-info":[{"award-number":["#304665\/2022-3"]}],"id":[{"id":"10.13039\/501100002322","id-type":"DOI","asserted-by":"crossref"}]},{"name":"Brazilian National Council for Scientific and Technological Development","award":["001"],"award-info":[{"award-number":["001"]}]},{"name":"Brazilian National Council for Scientific and Technological Development","award":["#88887.891846\/2023-00"],"award-info":[{"award-number":["#88887.891846\/2023-00"]}]},{"name":"Brazilian National Council for Scientific and Technological Development","award":["#304665\/2022-3"],"award-info":[{"award-number":["#304665\/2022-3"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Braz. Dent. J."],"abstract":"<jats:p>Abstract This study investigated the percentage of voids and marginal gaps in oval root canals filled with pre-mixed or powder-liquid calcium silicate-based sealers, using the single-cone technique. Eighty-four mandibular anterior teeth with oval root canals were selected and prepared by Reciproc R25 instruments. Teeth were then divided into two groups based on the sealer: Pre-mixed (BCS, Bio-C Sealer) (n=42) or Manipulated (BRR, BioRoot RCS) (n=42). Microcomputed tomography (micro-CT) was used to evaluate the percentage of voids and marginal gaps in the apical, middle, and cervical thirds of the root canals. Surface morphology of each sealer was evaluated on bovine dentin discs by scanning electron microscopy (SEM). Mann-Whitney and Friedman tests were employed for statistical analysis (\u03b1=5). BCS presented lower percentages of marginal gaps (p=0.00) and overall empty spaces (voids + gaps, p=0.01) compared to BRR. While BRR exhibited the lowest percentage of marginal gaps in the cervical third (p=0.00), BCS showed consistent performance across all root thirds (p&gt;0.05). SEM showed that BCS has a homogeneous structure and compact structure, while BRR exhibits a more porous surface with a greater number of mostly micron-sized or larger voids. BCS exhibited superior filling ability in oval root canals compared to BRR. The BRR group showed the highest percentage of gaps in the middle and apical segments.<\/jats:p>","DOI":"10.1590\/0103-644020256732","type":"journal-article","created":{"date-parts":[[2026,1,12]],"date-time":"2026-01-12T15:01:54Z","timestamp":1768230114000},"source":"Crossref","is-referenced-by-count":1,"title":["Voids and marginal gaps in oval-shaped root canals filled with calcium silicate-based sealers: Micro-CT study"],"prefix":"10.1590","volume":"36","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6013-5378","authenticated-orcid":false,"given":"Isabella Marian","family":"Lena","sequence":"first","affiliation":[{"name":"Universidade Federal de Santa Maria,  Brasil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5366-982X","authenticated-orcid":false,"given":"Cristiana Pereira","family":"Malta","sequence":"additional","affiliation":[{"name":"Universidade Federal de Santa Maria,  Brasil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-4544-4676","authenticated-orcid":false,"given":"Tamyres Veleda","family":"Fonseca","sequence":"additional","affiliation":[{"name":"Universidade Federal do Rio Grande do Sul,  Brasil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5412-3546","authenticated-orcid":false,"given":"Jo\u00e3o Paulo Mendes","family":"Tribst","sequence":"additional","affiliation":[{"name":"Universiteit van Amsterdam and Vrije Universiteit,  The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3844-2053","authenticated-orcid":false,"given":"Amanda Maria de Oliveira Dal","family":"Piva","sequence":"additional","affiliation":[{"name":"Universiteit van Amsterdam and Vrije Universiteit,  The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3218-8031","authenticated-orcid":false,"given":"Cornelis Johannes","family":"Kleverlaan","sequence":"additional","affiliation":[{"name":"Universiteit van Amsterdam and Vrije Universiteit,  The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J\u00e1nos","family":"Kodol\u00e1nyi","sequence":"additional","affiliation":[{"name":"Universiteit van Amsterdam and Vrije Universiteit,  The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9077-9067","authenticated-orcid":false,"given":"Gabriel Kalil Rocha","family":"Pereira","sequence":"additional","affiliation":[{"name":"Universidade Federal de Santa Maria,  Brasil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2514-6036","authenticated-orcid":false,"given":"Patr\u00edcia Maria Poli Kopper","family":"M\u00f3ra","sequence":"additional","affiliation":[{"name":"Universidade Federal do Rio Grande do Sul,  Brasil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8444-2820","authenticated-orcid":false,"given":"Renata Dornelles","family":"Morgental","sequence":"additional","affiliation":[{"name":"Universidade Federal de Santa Maria,  Brasil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"530","published-online":{"date-parts":[[2025]]},"reference":[{"issue":"10","key":"ref1","article-title":"Comparison of the percentage of voids in the canal filling of a calcium silicate-based sealer and gutta percha cones using two obturation techniques","volume":"10","author":"Kim S","year":"2017","journal-title":"Materials"},{"issue":"1","key":"ref2","doi-asserted-by":"crossref","first-page":"12","DOI":"10.1111\/j.1365-2591.1995.tb00150.x","article-title":"Periapical status of endodontically treated teeth in relation to 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