{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T16:49:00Z","timestamp":1792860540930,"version":"4.5.0"},"reference-count":17,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2025,3,27]],"date-time":"2025-03-27T00:00:00Z","timestamp":1743033600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Bioeng. Biotechnol."],"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>In patients with severe wear, the performance of restorative materials is challenging, especially in load-bearing thin restorations. In this study, we aimed to investigate the wear rate in thin-layered restoration (1.5\u00a0mm) compared to more bulky restorations (3\u00a0mm), where less deformation and stress within the material are expected.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>The wear rates of four resin-based composites were measured using one layer of 3-mm thickness compared to a thin-layered specimen of 1.5-mm composite, which was supported by a flexible layer of 1.5-mm silicone impression material. Two- and three-body wear were measured using the ACTA wear device. Scanning electron microscopy analysis was performed to detect the surface alterations. One- and two-way ANOVA and Tukey\u2019s <jats:italic>post hoc<\/jats:italic> test were used to analyze differences in wear values.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The two-body wear of the 1.5-mm specimens was significantly higher (p &amp;lt; 0.001) than that of the 3-mm specimens. The increase in the wear rate between the 1.5-mm and 3-mm specimens can be attributed to fatigue wear. The three-body wear of the 1.5-mm Heliomolar (HMR) specimens was significantly higher than that of the 3-mm HMR specimens. However, for the three-body wear, there was no significant difference between the 1.5-mm and 3-mm specimens of Clearfil AP-X and Clearfil Majesty ES-2.<\/jats:p><\/jats:sec><jats:sec><jats:title>Significance<\/jats:title><jats:p>The results of this study show for the first time that fatigue wear plays a role in the wear mechanism of thin (1.5\u00a0mm) dental resin-based composites. Therefore, the deformation of restorations under loading should be minimized by avoiding thin restorations and flexible conditions and using resin-based composites with high E-moduli.<\/jats:p><\/jats:sec>","DOI":"10.3389\/fbioe.2025.1545026","type":"journal-article","created":{"date-parts":[[2025,3,27]],"date-time":"2025-03-27T12:53:21Z","timestamp":1743080001000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":4,"title":["Wear mechanisms of thin dental composites"],"prefix":"10.3389","volume":"13","author":[{"given":"Magdalena A.","family":"Osiewicz","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Arie","family":"Werner","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Franciscus J. 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Oral Investig."},{"key":"B17","doi-asserted-by":"publisher","first-page":"105597","DOI":"10.1016\/j.jmbbm.2022.105597","article-title":"Effect of the region of the CAD\/CAM block on the flexural strength and structural reliability of restorative materials","volume":"138","author":"Venturini","year":"2023","journal-title":"J. Mech. Behav. Biomed. Mater."}],"container-title":["Frontiers in Bioengineering and Biotechnology"],"original-title":[],"link":[{"URL":"https:\/\/www.frontiersin.org\/articles\/10.3389\/fbioe.2025.1545026\/full","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,3,27]],"date-time":"2025-03-27T12:53:27Z","timestamp":1743080007000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.frontiersin.org\/articles\/10.3389\/fbioe.2025.1545026\/full"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,3,27]]},"references-count":17,"alternative-id":["10.3389\/fbioe.2025.1545026"],"URL":"https:\/\/doi.org\/10.3389\/fbioe.2025.1545026","relation":{},"ISSN":["2296-4185"],"issn-type":[{"value":"2296-4185","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,3,27]]},"article-number":"1545026"}}