{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,5]],"date-time":"2026-09-05T00:01:07Z","timestamp":1788566467685,"version":"build-2803163510"},"reference-count":43,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2024,12,22]],"date-time":"2024-12-22T00:00:00Z","timestamp":1734825600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100003725","name":"National Research Foundation of Korea","doi-asserted-by":"publisher","award":["2020R1G1A1007134"],"award-info":[{"award-number":["2020R1G1A1007134"]}],"id":[{"id":"10.13039\/501100003725","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":[[2025,4]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>To evaluate the complementary mechanical properties of dental ceramics using edge chipping resistance (Rea) and flexural strength before and after thermomechanical aging.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Material and Methods<\/jats:title>\n                    <jats:p>\n                      Computer\u2010aided design and computer\u2010aided manufacturing of ceramic materials, including zirconia (ZR), lithium disilicate (LS2), and resin nanoceramics (RNC), were evaluated. Specimens for flexural strength testing were fabricated with dimensions of 3\u2009\u00d7\u20094\u2009\u00d7\u200925\u2009mm, with 30\u2009specimens per group. For the edge chipping test (ECT), specimens were fabricated with dimensions of 3\u2009\u00d7\u20094\u2009\u00d7\u200912\u2009mm, with 48 specimens per group. Half of the specimens for both tests were subjected to thermomechanical aging for 200,000\u2009cycles at 50\u2009N. A Weibull analysis was performed to determine flexural strength. Fractographic analysis was performed before and after thermomechanical aging during the ECT. X\u2010ray diffractometry (XRD) was performed on the ZR specimens before and after thermomechanical aging. Flexural strength was analyzed using a two\u2010way repeated analysis of variance (ANOVA) with a\n                      <jats:italic>t<\/jats:italic>\n                      \u2010test, and Rea was analyzed using Pearson correlation and a two\u2010way repeated ANOVA.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The flexural strength and Rea differed according to the material (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.001), whereas they were similar before and after thermomechanical aging (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&gt;\u20090.05). The Weibull modulus of the flexural strength decreased after thermomechanical aging. In the fractographic analysis of the ECT, more than two fracture origins were identified after thermomechanical aging. The XRD analysis of ZR showed an increased monoclinic phase after thermomechanical aging.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>All the materials met the ISO 6872 standards for bending test. However, LS2 and RNC show low edge chipping resistance within the range of the occlusal force. The thermomechanical aging did not significantly alter the mechanical properties of the materials. However, the Weibull coefficients of the flexural strength decreased, and an additional origin of fracture appeared after thermomechanical aging.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Significance<\/jats:title>\n                    <jats:p>Flexural strength and Rea differed depending on the material used. The probability of the material fracture increased after thermomechanical aging. To understand ceramic fractures, two mechanical tests and thermomechanical aging must be performed together.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/jerd.13391","type":"journal-article","created":{"date-parts":[[2024,12,23]],"date-time":"2024-12-23T01:21:17Z","timestamp":1734916877000},"page":"1096-1104","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Edge Chipping Resistance and Flexural Strength of\n                    <scp>CAD<\/scp>\n                    \u2010\n                    <scp>CAM<\/scp>\n                    Ceramics Before and After Thermomechanical Aging"],"prefix":"10.1111","volume":"37","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7123-5059","authenticated-orcid":false,"given":"Min\u2010Gyu","family":"Song","sequence":"first","affiliation":[{"name":"Department of Prosthodontics and Research Institute of Oral Science, College of Dentistry Gangneung\u2010Wonju National University  Gangneung Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1260-8844","authenticated-orcid":false,"given":"Kyung\u2010Ho","family":"Ko","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics and Research Institute of Oral Science, College of Dentistry Gangneung\u2010Wonju National University  Gangneung Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4072-5199","authenticated-orcid":false,"given":"Yoon\u2010Hyuk","family":"Huh","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics and Research Institute of Oral Science, College of Dentistry Gangneung\u2010Wonju National University  Gangneung Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4734-214X","authenticated-orcid":false,"given":"Chan\u2010Jin","family":"Park","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics and Research Institute of Oral Science, College of Dentistry Gangneung\u2010Wonju National University  Gangneung Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3989-2870","authenticated-orcid":false,"given":"Lee\u2010Ra","family":"Cho","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics and Research Institute of Oral Science, College of Dentistry Gangneung\u2010Wonju National University  Gangneung Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2024,12,22]]},"reference":[{"key":"e_1_2_9_2_1","article-title":"Tensile Bond Strength of CAD\u2010CAM all Ceramic Crowns Before and After Thermomechanical Aging","author":"Park C. 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