{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,20]],"date-time":"2026-07-20T12:57:40Z","timestamp":1784552260737,"version":"3.55.0"},"reference-count":54,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2025,7,10]],"date-time":"2025-07-10T00:00:00Z","timestamp":1752105600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["European J Oral Sciences"],"published-print":{"date-parts":[[2025,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The mechanical properties and machinability of CAD\/CAM materials are critical in determining their clinical applications. This study evaluated and compared the mechanical behavior and machinability of three composite\u2010based blocks: Cerasmart (CS), Lava Ultimate (LU), and Grandio Blocs (GR), with a ceramic\u2010based block, Initial LRF (IR). Flexural strength, flexural modulus, fracture toughness, and Vickers hardness were assessed following standardized ISO protocols. The machinability was tested using the Merlon fracture method (ISO 18675:2022), and machined margins were examined using scanning electron microscopy (SEM). One\u2010way ANOVA was performed for statistical analysis (<jats:italic>\u03b1<\/jats:italic>\u00a0=\u00a00.05). GR exhibited the highest flexural strength among the tested materials, while IR showed significantly higher flexural modulus and Vickers hardness than the other materials. CS showed the lowest fracture toughness values. SEM observations revealed clear differences in surface quality after machining, with the ceramic block IR displaying inferior edge integrity compared with the composite\u2010based blocks. All four materials demonstrated satisfactory machinability according to ISO standards. However, composite\u2010based blocks exhibited better edge quality compared with the leucite\u2010reinforced ceramic block. The findings indicate that composite\u2010based restorative materials may result in better adaptation at the dental margins in posterior restorations, whereas ceramic materials present greater hardness, making them particularly suitable for enamel replacement.<\/jats:p>","DOI":"10.1111\/eos.70030","type":"journal-article","created":{"date-parts":[[2025,7,11]],"date-time":"2025-07-11T04:29:41Z","timestamp":1752208181000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Merlon machinability and mechanical properties of four CAD\/CAM block materials"],"prefix":"10.1111","volume":"133","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8301-498X","authenticated-orcid":false,"given":"Nina","family":"Attik","sequence":"first","affiliation":[{"name":"Laboratoire des Multimat\u00e9riaux et Interfaces UMR CNRS 5615, Univ Lyon Universit\u00e9 Claude Bernard Lyon 1  Villeurbanne France"},{"name":"Facult\u00e9 d'Odontologie, Univ Lyon Universit\u00e9 Claude Bernard Lyon 1  Lyon France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8930-4443","authenticated-orcid":false,"given":"Pierre","family":"Colon","sequence":"additional","affiliation":[{"name":"Laboratoire des Multimat\u00e9riaux et Interfaces UMR CNRS 5615, Univ Lyon Universit\u00e9 Claude Bernard Lyon 1  Villeurbanne France"},{"name":"Facult\u00e9 d'Odontologie Universit\u00e9 Paris Cit\u00e9  Paris France"},{"name":"Service Odontologie H\u00f4pital Rothschild Assistance Publique\u2010H\u00f4pitaux de Paris  Paris France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2194-7300","authenticated-orcid":false,"given":"Brigitte","family":"Grosgogeat","sequence":"additional","affiliation":[{"name":"Laboratoire des Multimat\u00e9riaux et Interfaces UMR CNRS 5615, Univ Lyon Universit\u00e9 Claude Bernard Lyon 1  Villeurbanne France"},{"name":"Facult\u00e9 d'Odontologie, Univ Lyon Universit\u00e9 Claude Bernard Lyon 1  Lyon France"},{"name":"Service d'Odontologie Hospices Civils de Lyon  Lyon France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-5461-5927","authenticated-orcid":false,"given":"Fatma Zohra","family":"Cherchali","sequence":"additional","affiliation":[{"name":"Laboratoire des Multimat\u00e9riaux et Interfaces UMR CNRS 5615, Univ Lyon Universit\u00e9 Claude Bernard Lyon 1  Villeurbanne France"},{"name":"Laboratoire de Synth\u00e8se Macromol\u00e9culaire et Thio\u2010organique Macromol\u00e9culaire Facult\u00e9 de Chimie Universit\u00e9 des Sciences et de la Technologie Houari Boumediene  Alger Algeria"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8187-3473","authenticated-orcid":false,"given":"Hazem","family":"Abouelleil","sequence":"additional","affiliation":[{"name":"Laboratoire des Multimat\u00e9riaux et Interfaces UMR CNRS 5615, Univ Lyon Universit\u00e9 Claude Bernard Lyon 1  Villeurbanne France"},{"name":"Facult\u00e9 d'Odontologie, Univ Lyon Universit\u00e9 Claude Bernard Lyon 1  Lyon France"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,7,10]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12903\u2010017\u20100415\u20100"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1177\/0022034516634286"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1155\/2018\/4893143"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.dental.2019.05.007"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.dental.2021.04.002"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.3390\/ma14237293"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1111\/jopr.12408"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1111\/jopr.12420"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.prosdent.2017.08.016"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.15517\/ijds.2020.38742"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.dib.2019.103889"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpor.2017.06.001"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.prosdent.2020.03.032"},{"key":"e_1_2_8_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.prosdent.2016.09.022"},{"key":"e_1_2_8_16_1","doi-asserted-by":"publisher","DOI":"10.1080\/26415275.2021.1964969"},{"key":"e_1_2_8_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jmbbm.2019.103388"},{"key":"e_1_2_8_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jdent.2016.09.002"},{"key":"e_1_2_8_19_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.dental.2015.10.012"},{"key":"e_1_2_8_20_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0266358"},{"key":"e_1_2_8_21_1","doi-asserted-by":"publisher","DOI":"10.4012\/dmj.28.661"},{"key":"e_1_2_8_22_1","doi-asserted-by":"publisher","DOI":"10.3390\/medicina56030132"},{"key":"e_1_2_8_23_1","unstructured":"International Organization for Standardization.ISO 18675:2022 \u2013 Dentistry \u2014 Impression trays [Internet].ISO;2022. [cited 2025 Jun 20]. Available from:https:\/\/www.iso.org\/standard\/77089.html"},{"key":"e_1_2_8_24_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.prosdent.2015.04.016"},{"key":"e_1_2_8_25_1","doi-asserted-by":"publisher","DOI":"10.1111\/jopr.13361"},{"key":"e_1_2_8_26_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.dental.2018.11.032"},{"key":"e_1_2_8_27_1","doi-asserted-by":"publisher","DOI":"10.4012\/dmj.2014-208"},{"key":"e_1_2_8_28_1","doi-asserted-by":"publisher","DOI":"10.2341\/18-161-L"},{"key":"e_1_2_8_29_1","doi-asserted-by":"publisher","DOI":"10.1155\/2021\/8828954"},{"key":"e_1_2_8_30_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.dental.2021.03.006"},{"key":"e_1_2_8_31_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.dental.2017.01.003"},{"key":"e_1_2_8_32_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.dental.2018.06.017"},{"key":"e_1_2_8_33_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jmbbm.2019.103401"},{"key":"e_1_2_8_34_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.dental.2018.10.006"},{"key":"e_1_2_8_35_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jmbbm.2016.01.023"},{"key":"e_1_2_8_36_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.dental.2016.10.005"},{"key":"e_1_2_8_37_1","doi-asserted-by":"publisher","DOI":"10.3390\/ma10121410"},{"key":"e_1_2_8_38_1","doi-asserted-by":"publisher","DOI":"10.2334\/josnusd.16-0833"},{"key":"e_1_2_8_39_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.prosdent.2016.08.034"},{"key":"e_1_2_8_40_1","doi-asserted-by":"publisher","DOI":"10.1111\/jopr.12964"},{"key":"e_1_2_8_41_1","doi-asserted-by":"publisher","DOI":"10.4012\/dmj.2022-154"},{"key":"e_1_2_8_42_1","doi-asserted-by":"publisher","DOI":"10.1177\/0022034518785364"},{"key":"e_1_2_8_43_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.dental.2015.03.007"},{"key":"e_1_2_8_44_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jdent.2018.05.004"},{"key":"e_1_2_8_45_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.prosdent.2017.03.001"},{"key":"e_1_2_8_46_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.dental.2016.03.003"},{"key":"e_1_2_8_47_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.dental.2016.03.003"},{"key":"e_1_2_8_48_1","doi-asserted-by":"publisher","DOI":"10.1590\/1678-7757-2016-0233"},{"key":"e_1_2_8_49_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jmbbm.2015.05.002"},{"key":"e_1_2_8_50_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jmbbm.2017.06.015"},{"key":"e_1_2_8_51_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jdent.2017.05.009"},{"key":"e_1_2_8_52_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jdent.2007.07.002"},{"key":"e_1_2_8_53_1","doi-asserted-by":"publisher","DOI":"10.4047\/jap.2017.9.6.423"},{"key":"e_1_2_8_54_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.prosdent.2017.01.028"},{"key":"e_1_2_8_55_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.compositesb.2017.12.044"}],"container-title":["European Journal of Oral Sciences"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/eos.70030","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,9,18]],"date-time":"2025-09-18T18:22:38Z","timestamp":1758219758000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/eos.70030"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,7,10]]},"references-count":54,"journal-issue":{"issue":"5","published-print":{"date-parts":[[2025,10]]}},"alternative-id":["10.1111\/eos.70030"],"URL":"https:\/\/doi.org\/10.1111\/eos.70030","archive":["Portico"],"relation":{},"ISSN":["0909-8836","1600-0722"],"issn-type":[{"value":"0909-8836","type":"print"},{"value":"1600-0722","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,7,10]]},"assertion":[{"value":"2025-04-28","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2025-06-24","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2025-07-10","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e70030"}}