{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,18]],"date-time":"2026-01-18T21:52:09Z","timestamp":1768773129439,"version":"3.49.0"},"reference-count":38,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2021,11,12]],"date-time":"2021-11-12T00:00:00Z","timestamp":1636675200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100002322","name":"Coordena\u00e7\u00e3o de Aperfei\u00e7oamento de Pessoal de N\u00edvel Superior","doi-asserted-by":"publisher","award":["001"],"award-info":[{"award-number":["001"]}],"id":[{"id":"10.13039\/501100002322","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J Esthet Restor Dent"],"published-print":{"date-parts":[[2022,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>This study aimed to evaluate the fracture strength and failure modes of different core techniques in teeth with simulated coronal destruction.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and methods<\/jats:title><jats:p>Forty teeth were endodontically prepared and the specimens were divided into four experimental groups (<jats:italic>n<\/jats:italic>\u00a0=\u200910) according to the core composition: Filtek One Bulk Fill\u2010<jats:italic>FOBF<\/jats:italic>, Filtek Z350 XT\u2010<jats:italic>FZ350<\/jats:italic> (standard group), Filtek Bulk Fill Flow\u2010<jats:italic>FBFF<\/jats:italic>, and LuxaCore Z\u2010<jats:italic>LCZ<\/jats:italic>. CAD\/CAM Monolithic zirconia crowns were obtained and cemented with RelyX U200. After storage in distilled water at 37\u00b0C for 48\u2009h, the specimens were subjected to thermal cycling and to compressive strength mechanical tests. Statistical analyses (<jats:italic>\u03b1<\/jats:italic>\u00a0=\u20090.05) were performed by non\u2010parametric Kruskal\u2013Wallis, Dunn post hoc, and Fisher's exact tests.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>No significant differences (<jats:italic>p<\/jats:italic>\u00a0&gt;\u20090.05) were observed among <jats:italic>FOBF<\/jats:italic>, <jats:italic>FZ350<\/jats:italic>, and <jats:italic>FBFF<\/jats:italic> (mean ranks\u00a0=\u00a020.30, 12.20, and 23.20, respectively). <jats:italic>LCZ<\/jats:italic> (mean rank\u00a0=\u00a026.30) produced results similar to those of <jats:italic>FOBF<\/jats:italic> and <jats:italic>FBFF<\/jats:italic> (<jats:italic>p<\/jats:italic>\u00a0&gt;\u20090.05) and higher than those of <jats:italic>FZ350<\/jats:italic> (<jats:italic>p<\/jats:italic>\u00a0=\u20090.042). The most frequent type of failure was irreparable, regardless of the experimental condition. The lowest percentages of reparable fractures were produced by <jats:italic>FOBF<\/jats:italic> group (10%).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The use of bulk fill materials, including the \u201ccore\u2010and\u2010post\u201d <jats:italic>LCZ<\/jats:italic> dual\u2010cure resin composite, did not impair the fracture strength of endodontically treated teeth with coronal destruction.<\/jats:p><\/jats:sec><jats:sec><jats:title>Clinical significance<\/jats:title><jats:p>Resin composite bulk fill materials that can be used as a core\u2010and\u2010post cementation in an only stage are interesting, since they enable clinicians to work with one only material, and avoid several materials interfaces, technical sensitivity, and longer chair\u2010time due to multistep procedures.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jerd.12833","type":"journal-article","created":{"date-parts":[[2021,11,12]],"date-time":"2021-11-12T10:27:07Z","timestamp":1636712827000},"page":"541-549","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Fracture strength of teeth with coronal destruction after core build\u2010up restoration with bulk fill materials"],"prefix":"10.1111","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4041-4430","authenticated-orcid":false,"given":"Carlos Rangel de Moura","family":"Oliveira","sequence":"first","affiliation":[{"name":"Department of Dental Materials and Prosthodontics, School of Dentistry Sao Paulo State University \u2010 UNESP  Araraquara SP Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"\u00c9rica Gouveia Jorge","family":"Reis","sequence":"additional","affiliation":[{"name":"Private practice\/Department of Restorative Dentistry, School of Dentistry Sampaiodonto dental Clinic\/Sao Paulo State University \u2010 UNESP  Araraquara SP Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M\u00e1rio","family":"Tanomaru\u2010Filho","sequence":"additional","affiliation":[{"name":"Department of Restorative Dentistry, School of Dentistry Sao Paulo State University \u2010 UNESP  Araraquara SP Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1910-2360","authenticated-orcid":false,"given":"Jos\u00e9 Maur\u00edcio dos Santos Nunes","family":"Reis","sequence":"additional","affiliation":[{"name":"Department of Dental Materials and Prosthodontics, School of Dentistry Sao Paulo State University \u2010 UNESP  Araraquara SP 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