{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,8]],"date-time":"2026-09-08T05:14:21Z","timestamp":1788844461734,"version":"build-2803163510"},"reference-count":31,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2016,7,28]],"date-time":"2016-07-28T00:00:00Z","timestamp":1469664000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Prosthodontics"],"published-print":{"date-parts":[[2018,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>To evaluate the effect of different silica\u2010based ceramic materials on the mechanical failure behavior of endocrowns used in the restoration of endodontically treated mandibular molar teeth.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>Thirty\u2010six intact mandibular molar teeth extracted because of a loss of periodontal support received root canal treatment. The teeth were prepared with a central cavity to support the endocrowns, replacing the occlusal surface with mesial\u2010lingual\u2010distal walls. Data acquisition of the prepared tooth surfaces was carried out digitally with a powder\u2010free intraoral scanner. Restoration designs were completed on manufactured restorations from three silicate ceramics: alumina\u2010silicate (control), zirconia\u2010reinforced (Zr\u2010R), and polymer\u2010infiltrated (P\u2010I). Following adhesive cementation, endocrowns were subjected to thermal aging, and then, each specimen was obliquely loaded to record the fracture strength and define the mechanical failure. For the failure definition, the fracture type characteristics were identified, and further analytic measurements were made on the fractured tooth and ceramic structure.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Load\u2010to\u2010fracture failure did not differ significantly, and the calculated mean values were 1035.08 N, 1058.33 N, and 1025.00 N for control, Zr\u2010R, and P\u2010I groups, respectively; however, the stiffness of the restoration\u2010tooth complex was significantly higher than that in both test groups. No statistically significant correlation was established in paired comparisons of the failure strength, restorative stiffness, and fractured tooth distance parameters. The failure mode for teeth restored with zirconia\u2010reinforced glass ceramics was identified as non\u2010restorable. The resin interface in the control and P\u2010I groups presented similar adhesive failure behavior.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Mechanical failure of endocrown restorations does not significantly differ for silica\u2010based ceramics modified either with zirconia or polymer.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jopr.12499","type":"journal-article","created":{"date-parts":[[2016,7,28]],"date-time":"2016-07-28T11:52:57Z","timestamp":1469706777000},"page":"340-346","source":"Crossref","is-referenced-by-count":46,"title":["Mechanical Failure of Endocrowns Manufactured with Different Ceramic Materials: An In Vitro Biomechanical Study"],"prefix":"10.1111","volume":"27","author":[{"given":"Guliz","family":"Aktas","sequence":"first","affiliation":[{"name":"Department of Prosthodontics Hacettepe University  Ankara Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hatice","family":"Yerlikaya","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics Hacettepe University  Ankara Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kivanc","family":"Akca","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics Hacettepe University  Ankara Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2016,7,28]]},"reference":[{"key":"e_1_2_6_2_1","first-page":"255","article-title":"Etched porcelain facial veneers: a new treatment modality based on scientific and clinical evidence","volume":"53","author":"Calamia JR","year":"1983","journal-title":"N Y J Dent"},{"key":"e_1_2_6_3_1","first-page":"55","article-title":"Preparation of bonded porcelain inlays and onlays using a milling\u2010coping system","volume":"48","author":"Hendrix E","year":"1993","journal-title":"Rev Belge Med Dent"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/0300-5712(94)90085-X"},{"key":"e_1_2_6_5_1","first-page":"211","article-title":"Five\u2010year clinical performance of porcelain veneers","volume":"29","author":"Peumans M","year":"1998","journal-title":"Quintessence Int"},{"key":"e_1_2_6_6_1","first-page":"109","article-title":"Computer\u2010designed inlays after 5 years in situ: clinical performance and scanning electron microscopic evaluation","volume":"23","author":"M\u00f6rmann W","year":"1992","journal-title":"Quintessence Int"},{"key":"e_1_2_6_7_1","first-page":"329","article-title":"Chairside computer\u2010aided direct ceramic inlays","volume":"20","author":"M\u00f6rmann WH","year":"1989","journal-title":"Quintessence Int"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00784-013-1137-6"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0501.2007.01467.x"},{"key":"e_1_2_6_10_1","first-page":"333","article-title":"Effects of preparation and luting system on all\u2010ceramic computer\u2010generated crowns","volume":"11","author":"M\u00f6rmann WH","year":"1998","journal-title":"Int J Prosthodont"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0300-5712(96)00078-4"},{"key":"e_1_2_6_12_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0722.2004.00119.x"},{"key":"e_1_2_6_13_1","doi-asserted-by":"publisher","DOI":"10.11607\/prd.00.0601"},{"key":"e_1_2_6_14_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00784-012-0700-x"},{"key":"e_1_2_6_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.dental.2009.05.003"},{"key":"e_1_2_6_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jdent.2006.04.004"},{"key":"e_1_2_6_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jdent.2007.07.006"},{"key":"e_1_2_6_18_1","first-page":"219","article-title":"Survival of ceramic computer\u2010aided design\/manufacturing crowns bonded to preparations with reduced macroretention geometry","volume":"18","author":"Bindl A","year":"2005","journal-title":"Int J Prosthodont"},{"key":"e_1_2_6_19_1","first-page":"255","article-title":"Clinical evaluation of adhesively placed Cerec endo\u2010crowns after 2 years\u2010preliminary results","volume":"1","author":"Bindl A","year":"1999","journal-title":"J Adhes Dent"},{"key":"e_1_2_6_20_1","first-page":"99","article-title":"Endocrowns: a clinical report","volume":"39","author":"Lander E","year":"2008","journal-title":"Quintessence Int"},{"key":"e_1_2_6_21_1","doi-asserted-by":"publisher","DOI":"10.1111\/jerd.12065"},{"key":"e_1_2_6_22_1","first-page":"26","volume-title":"Wheeler's Atlas of Tooth Form","author":"Ash MM","year":"1984"},{"key":"e_1_2_6_23_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.dental.2013.11.010"},{"key":"e_1_2_6_24_1","doi-asserted-by":"publisher","DOI":"10.4012\/dmj.20.227"},{"key":"e_1_2_6_25_1","unstructured":"Vita Suprinity: Technical and scientific documentation. 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