{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T16:17:24Z","timestamp":1788279444228,"version":"build-2803163510"},"reference-count":50,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2025,12,18]],"date-time":"2025-12-18T00:00:00Z","timestamp":1766016000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,12,18]],"date-time":"2025-12-18T00:00:00Z","timestamp":1766016000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100003593","name":"Conselho Nacional de Desenvolvimento Cient\u00edfico e Tecnol\u00f3gico","doi-asserted-by":"publisher","award":["INCT 406840\/2022\u20109"],"award-info":[{"award-number":["INCT 406840\/2022\u20109"]}],"id":[{"id":"10.13039\/501100003593","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003593","name":"Conselho Nacional de Desenvolvimento Cient\u00edfico e Tecnol\u00f3gico","doi-asserted-by":"publisher","award":["422603\/2021\u20100"],"award-info":[{"award-number":["422603\/2021\u20100"]}],"id":[{"id":"10.13039\/501100003593","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004901","name":"Funda\u00e7\u00e3o de Amparo \u00e0 Pesquisa do Estado de Minas Gerais","doi-asserted-by":"publisher","award":["APQ\u201004262\u20102"],"award-info":[{"award-number":["APQ\u201004262\u20102"]}],"id":[{"id":"10.13039\/501100004901","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004901","name":"Funda\u00e7\u00e3o de Amparo \u00e0 Pesquisa do Estado de Minas Gerais","doi-asserted-by":"publisher","award":["RED\u201000204\u201023"],"award-info":[{"award-number":["RED\u201000204\u201023"]}],"id":[{"id":"10.13039\/501100004901","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002322","name":"Coordena\u00e7\u00e3o de Aperfei\u00e7oamento de Pessoal de N\u00edvel Superior","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100002322","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Dental Traumatology"],"published-print":{"date-parts":[[2026,8]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background\/Objective<\/jats:title>\n                    <jats:p>3D printed materials have been evaluated for fabricating mouthguards; however, little is known about their biomechanical performance in preventing dental trauma. This study aimed to compare two 3D printed polymers and three ethylene vinyl acetate (EVA) sheets used for mouthguard fabrication regarding their mechanical properties and stress\u2013strain behavior during impact, analyzed through finite element analysis (FEA).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and Methods<\/jats:title>\n                    <jats:p>\n                      Two 3D printed polymers, KeyGuard (Keystone) and DimaPrint (Kulzer), and three EVA sheets, Bio\u2010art, Essence Dental, and Proform, were used to create the specimens following ISO 37\u2010II (\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u200910). Shore A hardness was measured on the surface. The breaking force (\n                      <jats:italic>F<\/jats:italic>\n                      , N), elongation (EL, %), ultimate tensile strength (UTS, MPa), and elastic modulus (E, MPa) were measured using a universal testing machine (EMIC). Density (\n                      <jats:italic>\u03c1<\/jats:italic>\n                      , g\/cm\n                      <jats:sup>3<\/jats:sup>\n                      ) was determined using the test method following ASTM D792. Poisson's ratio was calculated by using axial tensile tests following ASTM D638. Scanning electron microscopy was used to examine the surfaces of EVAs and 3D printed polymers. A two\u2010dimensional finite element model of the maxillary structure and upper incisor was evaluated with and without a 4.0\u2009mm mouthguard made from each material. An impact simulation was performed by striking the upper incisor with a rigid surface at 1\u2009m\/s (3.6\u2009km\/h). Strain and modified von Mises stress distributions were evaluated, and mouthguard displacement relative to the tooth was calculated.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      One\u2010way ANOVA revealed significant differences among the tested mouthguards for all evaluated parameters (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.01). Essence Dental showed the highest and DimaPrint the lowest values of\n                      <jats:italic>F<\/jats:italic>\n                      and UTS values (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.01). Proform was the highest, and DimaPrint had the lowest EL values (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.01). DimaPrint and KeyGuard had the highest, and Proform had the lowest E values (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.01). KeyGuard, Essence Dental, and Bio\u2010art had higher Shore A values than Proform and DimaPrint (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.01). The 3D printed polymer group had significantly higher Poisson's ratio values than EVAs. The density values were similar for all tested materials (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.055). The absence of a mouthguard led to greater stress and strain on the impacted tooth. All mouthguards significantly reduced these values, showing comparable shock\u2010absorbing capacity. Displacement was generally lower in the buccal region and increased toward the palatal side.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Although the 3D\u2010printed polymers exhibited mechanical properties different from EVA materials, all mouthguards demonstrated similar effectiveness for reducing stress and strain on the impacted tooth, indicating comparable protection against dental trauma.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/edt.70044","type":"journal-article","created":{"date-parts":[[2025,12,19]],"date-time":"2025-12-19T05:38:27Z","timestamp":1766122707000},"page":"511-522","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Biomechanical Analysis of\n                    <scp>3D<\/scp>\n                    Printed and Thermoformed\n                    <scp>EVA<\/scp>\n                    Custom\u2010Made Mouthguard: Experimental and Finite Element Analyses"],"prefix":"10.1111","volume":"42","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3185-9622","authenticated-orcid":false,"given":"Airin Karelys Avenda\u00f1o","family":"Rondon","sequence":"first","affiliation":[{"name":"Department of Operative Dentistry and Dental Materials, Dental School Federal University of Uberl\u00e2ndia, Uberl\u00e2ndia  Uberl\u00e2ndia Minas Gerais Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-1386-2382","authenticated-orcid":false,"given":"Izabela Batista","family":"Cordeiro","sequence":"additional","affiliation":[{"name":"Department of Operative Dentistry and Dental Materials, Dental School Federal University of Uberl\u00e2ndia, Uberl\u00e2ndia  Uberl\u00e2ndia Minas Gerais 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