{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T06:24:14Z","timestamp":1790922254573,"version":"4.1.0"},"reference-count":32,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2023,7,13]],"date-time":"2023-07-13T00:00:00Z","timestamp":1689206400000},"content-version":"vor","delay-in-days":193,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003970","name":"Isfahan University of Medical Sciences","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100003970","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["BioMed Research International"],"published-print":{"date-parts":[[2023,1]]},"abstract":"<jats:p><jats:italic>Introduction<\/jats:italic>. The aim of this study was to evaluate the fracture resistance of endodontically treated mandibular molars using traditional and conservative access cavity preparation. <jats:italic>Materials and Methods<\/jats:italic>. In this in vitro study, 100 extracted healthy human mandibular molars were selected and divided into 10 groups (<jats:italic>n<\/jats:italic> = 10). Healthy teeth in one group were considered the control group. In three groups, traditional access cavity preparation was done (groups A) without two marginal ridges (A1), with one marginal ridge (A2), and with two marginal ridges (A3). In three groups (group B), two separate access cavities with a dentinoenamel roof without two marginal ridges (B1), with one marginal ridge (B2), and with two marginal ridges (B3) were prepared. In three other groups (groups C), two separate access cavities were prepared only with a dentinal roof without two marginal ridges (C1), with one marginal ridge (C2), and with two marginal ridges (C3), on which root canal treatment was performed afterward. Then, these teeth were subjected to force until fracture. The fracture force and fracture mode of each tooth were recorded and compared between groups by ANOVA, Tukey\u2019s post hoc, and chi\u2010square tests using SPSS ver. 23 (IBM, Somers, NJ, USA). <jats:italic>Results<\/jats:italic>. The control teeth had the highest mean fracture force (2804.5 \u00b1 338.5\u2009N), followed by a conservative access cavity with a dentinoenamel roof and two marginal ridges (2360.4 \u00b1 181.72\u2009N) and a conservative access cavity with a dentinoenamel roof and one marginal ridge (1812.8 \u00b1 263.9\u2009N), respectively. The lowest mean fracture force was found for the conventional access cavity group without two marginal ridges (399.4 \u00b1 95.2\u2009N). <jats:italic>Conclusion<\/jats:italic>. In the condition of this study, with two separate access cavities in mandibular molars and maintenance of the marginal ridges, it is possible to provide teeth with higher fracture resistance against occlusal forces.<\/jats:p>","DOI":"10.1155\/2023\/7247375","type":"journal-article","created":{"date-parts":[[2023,7,13]],"date-time":"2023-07-13T23:20:05Z","timestamp":1689290405000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Evaluation of the Fracture Resistance of Conservative and Ultraconservative Access Cavity Designs with Different Treatment Modalities: An In Vitro Study"],"prefix":"10.1155","volume":"2023","author":[{"given":"Farzaneh","family":"Shirani","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masoud","family":"saatchi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4638-6231","authenticated-orcid":false,"given":"Mehrangiz","family":"Shirani","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1205-8675","authenticated-orcid":false,"given":"Niloufar","family":"Jafari","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2023,7,13]]},"reference":[{"key":"e_1_2_10_1_2","first-page":"772","article-title":"Evidence-based treatment planning for the restoration of endodontically treated single teeth: importance of coronal seal, post vs no post, and indirect vs direct restoration","volume":"50","author":"Atlas A.","year":"2019","journal-title":"Quintessence Int"},{"key":"e_1_2_10_2_2","article-title":"Biomechanical considerations for the restoration of endodontically treated teeth: a systematic review of the literature, part II (evaluation of fatigue behavior, interfaces, and in vivo studies)","volume":"39","author":"Dietschi D.","year":"2008","journal-title":"Quintessence International"},{"key":"e_1_2_10_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-3913(10)60146-1"},{"key":"e_1_2_10_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joen.2013.12.012"},{"key":"e_1_2_10_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/0022-3913(86)90068-5"},{"key":"e_1_2_10_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joen.2017.01.022"},{"key":"e_1_2_10_7_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2591.2011.01859.x"},{"key":"e_1_2_10_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.cden.2010.01.001"},{"key":"e_1_2_10_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joen.2021.05.007"},{"key":"e_1_2_10_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jdent.2015.06.012"},{"key":"e_1_2_10_11_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joen.2018.05.012"},{"key":"e_1_2_10_12_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0099-2399(89)80191-8"},{"key":"e_1_2_10_13_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.prosdent.2015.08.013"},{"key":"e_1_2_10_14_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joen.2018.12.006"},{"key":"e_1_2_10_15_2","doi-asserted-by":"publisher","DOI":"10.1111\/iej.13219"},{"key":"e_1_2_10_16_2","doi-asserted-by":"publisher","DOI":"10.2147\/CCIDE.S236815"},{"key":"e_1_2_10_17_2","doi-asserted-by":"publisher","DOI":"10.1111\/aej.12446"},{"key":"e_1_2_10_18_2","doi-asserted-by":"publisher","DOI":"10.1038\/bdj.2007.682"},{"key":"e_1_2_10_19_2","volume-title":"Endodontics","author":"Ingle J. I.","year":"1985"},{"key":"e_1_2_10_20_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joen.2018.01.020"},{"key":"e_1_2_10_21_2","doi-asserted-by":"publisher","DOI":"10.4103\/0972-0707.117494"},{"key":"e_1_2_10_22_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2591.2009.01632.x"},{"key":"e_1_2_10_23_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joen.2021.12.012"},{"key":"e_1_2_10_24_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joen.2011.07.002"},{"key":"e_1_2_10_25_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joen.2020.06.013"},{"key":"e_1_2_10_26_2","doi-asserted-by":"publisher","DOI":"10.1111\/jopr.12777"},{"key":"e_1_2_10_27_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jmbbm.2019.07.006"},{"key":"e_1_2_10_28_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joen.2019.02.007"},{"key":"e_1_2_10_29_2","doi-asserted-by":"publisher","DOI":"10.1111\/aej.12148"},{"key":"e_1_2_10_30_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.joen.2017.05.006"},{"key":"e_1_2_10_31_2","doi-asserted-by":"publisher","DOI":"10.1177\/2050168420963295"},{"key":"e_1_2_10_32_2","doi-asserted-by":"publisher","DOI":"10.4317\/medoral.17621"}],"container-title":["BioMed Research International"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/bmri\/2023\/7247375.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/bmri\/2023\/7247375.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1155\/2023\/7247375","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,8,5]],"date-time":"2024-08-05T22:39:08Z","timestamp":1722897548000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1155\/2023\/7247375"}},"subtitle":[],"editor":[{"given":"Carlo Eduardo","family":"Medina-Solis","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"editor"}]}],"short-title":[],"issued":{"date-parts":[[2023,1]]},"references-count":32,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2023,1]]}},"alternative-id":["10.1155\/2023\/7247375"],"URL":"https:\/\/doi.org\/10.1155\/2023\/7247375","archive":["Portico"],"relation":{},"ISSN":["2314-6133","2314-6141"],"issn-type":[{"value":"2314-6133","type":"print"},{"value":"2314-6141","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,1]]},"assertion":[{"value":"2022-06-25","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2023-06-09","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2023-07-13","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"7247375"}}