{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,19]],"date-time":"2026-08-19T19:07:38Z","timestamp":1787166458401,"version":"build-2736575974"},"reference-count":41,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2023,8,1]],"date-time":"2023-08-01T00:00:00Z","timestamp":1690848000000},"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":[[2024,6]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To determine the fracture resistance of chairside computer\u2010aided design and computer\u2010aided manufacturing (CAD\u2010CAM) zirconia surveyed crowns for a mandibular first molar without occlusal rest and with four different rest seat designs.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and Methods<\/jats:title>\n                    <jats:p>Seventy CAD\u2010CAM zirconia 4Y\u2010PSZ (IPS e.max ZirCAD MT for CEREC A1, C15, Ivoclar Vivadent) crowns (14 specimens\/group) were designed and fabricated with a dental chairside CAD\u2010CAM system (CEREC PrimeScan, and CEREC MCXL Dentsply Sirona). The restorations were divided into groups according to the following rest seat designs: (1) Surveyed crown without rest seat, (2) surveyed crowns with disto\u2010occlusal rest seat, (3) surveyed crowns with disto\u2010occlusal extended rest seat, (4) surveyed crowns with interproximal rest seat, and (5) continuous rest seat. Crowns were treated with a primer system (Monobond Plus, Ivoclar Vivadent) and cemented using resin luting cement (Multilink Automix, Ivoclar Vivadent) to resin\u2010printed dies (Grey Resin V4, FormLabs). Subsequently, the crowns were subjected to 200,000 load cycles at 1\u00a0Hz with 20 N force and then loaded with a steel indenter until fracture. The test results were analyzed with one\u2010way Analysis of Variance (ANOVA) and HSD Tukey post\u2010Hoc test.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The mean fracture resistance of surveyed crowns without and with different rest seats was significantly different from each other. Surveyed crowns with no rest seat displayed the highest resistance (4238 N) followed by crowns with continuous rest seat (3601 N), crowns with disto\u2010occlusal extended rest seat (3283 N), and crowns with disto\u2010occlusal rest seat (3257 N). Crowns with interproximal rest seat displayed the lowest fracture resistance (2723 N).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Surveyed crowns without rest seats had a higher fracture resistance than crowns with rest seats Surveyed crowns with interproximal rest seats presented the lowest fracture resistance among all rest seat designs. Crowns with disto\u2010occlusal rest seats, disto\u2010occlusal extended rest seats, and continuous rest seats displayed similar fracture resistance.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/jopr.13737","type":"journal-article","created":{"date-parts":[[2023,7,20]],"date-time":"2023-07-20T15:14:25Z","timestamp":1689866065000},"page":"484-489","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Fracture resistance of zirconia surveyed crowns with four different occlusal rest seat designs"],"prefix":"10.1111","volume":"33","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7437-4855","authenticated-orcid":false,"given":"Carlos Alberto","family":"Jurado","sequence":"first","affiliation":[{"name":"Department of Prosthodontics The University of Iowa College of Dentistry and Dental Clinics  Iowa City Iowa USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3380-2400","authenticated-orcid":false,"given":"Akram","family":"Sayed Ahmed","sequence":"additional","affiliation":[{"name":"Department of Dental Biomaterials, Tanta University Faculty of Dentistry  Tanta Egypt"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9684-2015","authenticated-orcid":false,"given":"Nathaniel C.","family":"Lawson","sequence":"additional","affiliation":[{"name":"Division of Biomaterials Department of Clinical and Community Sciences, University of Alabama at Birmingham School of Dentistry  Birmingham Alabama USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8801-9173","authenticated-orcid":false,"given":"Francisco X.","family":"Azpiazu\u2010Flores","sequence":"additional","affiliation":[{"name":"Department of Restorative Dentistry University of Manitoba Gerald Niznick College of Dentistry  Winnipeg Manitoba Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Conley","family":"Green","sequence":"additional","affiliation":[{"name":"Texas Tech University Health Sciences Center El Paso Woody L. Hunt School of Dental Medicine  El Paso Texas USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2383-4011","authenticated-orcid":false,"given":"Seok\u2010Hwan","family":"Cho","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics The University of Iowa College of Dentistry and Dental Clinics  Iowa City Iowa USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2023,8]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.14219\/jada.archive.2006.0398"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.14219\/jada.archive.2006.0396"},{"issue":"3","key":"e_1_2_7_4_1","first-page":"457","article-title":"Das cerec\u2010system: computergest\u00fctzte herstellung direkter Keramikinlays in einer Sitzung [The Cerec system: computer\u2010assisted preparation of direct ceramic inlays in 1 setting.]","volume":"38","author":"M\u00f6rmann WH","year":"1987","journal-title":"Quintessenz"},{"issue":"10","key":"e_1_2_7_5_1","first-page":"640","article-title":"Digital full\u2010mouth reconstruction: from diagnostics to final full zirconia restorations","volume":"43","author":"Isleem W","year":"2022","journal-title":"Compend Contin Educ Dent"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.5005\/jp-journals-10024-3174"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/jerd.12323"},{"key":"e_1_2_7_8_1","article-title":"Assessment of chair\u2011side computer\u2011aided design and computer\u2011aided manufacturing restorations: a review of the literature","volume":"7","author":"Baroudi K","year":"2015","journal-title":"J Int Oral Health"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.3390\/ijerph15081599"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.11607\/prd.2911"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.5395\/rde.2020.45.e15"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1111\/jerd.13014"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1111\/jopr.12991"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1532-849X.2009.00441.x"},{"key":"e_1_2_7_15_1","unstructured":"American College of Prosthodontists.Facts and figures. 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