{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T21:35:12Z","timestamp":1790804112098,"version":"4.1.0"},"reference-count":37,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2024,5,24]],"date-time":"2024-05-24T00:00:00Z","timestamp":1716508800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Prosthodontics"],"published-print":{"date-parts":[[2025,10]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To evaluate the fracture resistance of chairside computer\u2010aided design and computer\u2010aided manufacturing (CAD\u2010CAM) lithium disilicate mandibular posterior crowns with virgilite of different occlusal thicknesses and compare them to traditional lithium disilicate crowns.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and Methods<\/jats:title>\n                    <jats:p>\n                      Seventy\u2010five chairside CAD\u2010CAM crowns were fabricated for mandibular right first molars, 60 from novel lithium disilicate with virgilite (CEREC Tessera, Dentsply Sirona), and 15 from traditional lithium disilicate (e.max CAD, Ivoclar Vivadent). These crowns were distributed across five groups based on occlusal thickness and material: Group 1 featured CEREC Tessera crowns with 0.8\u00a0mm thickness, Group 2 had 1.0\u00a0mm thickness, Group 3 had 1.2\u00a0mm thickness, Group 4 with 1.5\u00a0mm thickness, and Group 5 included e.max CAD crowns with 1.0\u00a0mm thickness. These crowns were luted onto 3D\u2010printed resin dies using Multilink Automix resin cement (Ivoclar Vivadent). Subsequently, they underwent cyclic loading (2,000,000 cycles at 1\u00a0Hz with a 275 N force) and loading until fracture. Scanning electron microscopy (SEM) assessed the fractured specimens. Statistical analysis involved one\u2010way ANOVA and the Kruskal\u2010Wallis Test (\n                      <jats:italic>\u03b1<\/jats:italic>\n                      = 0.05).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Fracture resistance varied significantly (&lt;0.001) across mandibular molar crowns fabricated from chairside CAD\u2010CAM lithium disilicate containing virgilite, particularly between crowns with 0.8\u00a0mm and those with 1.2 and 1.5\u00a0mm occlusal thickness. However, no significant differences were found when comparing crowns with 1, 1.2, and 1.5\u00a0mm thicknesses. CEREC Tessera crowns with 1.5\u00a0mm thickness exhibited the highest resistance (2119\u00a0N\/mm\n                      <jats:sup>2<\/jats:sup>\n                      ), followed by those with 1.2\u00a0mm (1982\u00a0N\/mm\n                      <jats:sup>2<\/jats:sup>\n                      ), 1.0\u00a0mm (1763\u00a0N\/mm\n                      <jats:sup>2<\/jats:sup>\n                      ), and 0.8\u00a0mm (1144\u00a0N\/mm\n                      <jats:sup>2<\/jats:sup>\n                      ) thickness, whereas e.max CAD crowns with 1.0\u00a0mm occlusal thickness displayed the lowest resistance (814\u00a0N\/mm\n                      <jats:sup>2<\/jats:sup>\n                      ).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>The relationship between thickness and fracture resistance in the virgilite lithium disilicate full\u2010coverage crowns was directly proportional, indicating that increased thickness corresponded to higher fracture resistance. No significant differences were noted among crowns with thicknesses ranging from 1 to 1.5\u00a0mm. This novel ceramic exhibited superior fracture resistance compared to traditional lithium disilicate.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/jopr.13870","type":"journal-article","created":{"date-parts":[[2024,5,25]],"date-time":"2024-05-25T00:45:20Z","timestamp":1716597920000},"page":"852-858","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Influence of occlusal thickness on the fracture resistance of chairside milled lithium disilicate posterior full\u2010coverage single\u2010unit prostheses containing virgilite: A comparative in vitro study"],"prefix":"10.1111","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7437-4855","authenticated-orcid":false,"given":"Carlos A.","family":"Jurado","sequence":"first","affiliation":[{"name":"Operative Dentistry Division Department of General Dentistry College of Dentistry University of Tennessee Health Science Center  Memphis Tennessee USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christian Edgar","family":"Davila","sequence":"additional","affiliation":[{"name":"Division of Prosthodontics Department of Restorative Dental Sciences University of Florida College of Dentistry  Gainesville Florida USA"},{"name":"Division of Prosthodontics, Department of Restorative Sciences School of Dentistry University of Alabama Birmingham Alabama USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexandra","family":"Davila","sequence":"additional","affiliation":[{"name":"Division of Prosthodontics Department of Restorative Dental Sciences University of Florida College of Dentistry  Gainesville Florida USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alfredo I.","family":"Hernandez","sequence":"additional","affiliation":[{"name":"A.T. Still University Arizona School of Dentistry and Oral Health  Mesa Arizona USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yukari","family":"Odagiri","sequence":"additional","affiliation":[{"name":"Department of Operative Dentistry School of Dentistry Aichi Gakuin University  Nagoya Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6053-8967","authenticated-orcid":false,"given":"Kelvin I.","family":"Afrashtehfar","sequence":"additional","affiliation":[{"name":"Department of Reconstructive Dentistry and Gerodontology School of Dental Medicine Faculty of Medicine University of Bern  Bern Switzerland"},{"name":"Clinical Sciences Department College of Dentistry Ajman University  Ajman City UAE"},{"name":"Consultant Private Practice Limited to Prosthodontics and Pre\u2010Prosthetic Surgery  Abu Dhabi UAE"},{"name":"Consultant Private Practice Limited to Prosthodontics, Esthetic and Implant Dentistry  Dubai UAE"},{"name":"Division of Periodontology Rheinisch\u2010Westf\u00e4lische Technische Hochschule (RWTH) Aachen University Hospital  Aachen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0598-9842","authenticated-orcid":false,"given":"Damian","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics Tufts University School of Dental Medicine  Boston Massachusetts USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2024,5,24]]},"reference":[{"key":"e_1_2_7_2_1","first-page":"12","article-title":"Empress 2. 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