Comparison of trueness and margin quality of additively and subtractively manufactured definitive resin-based laminate veneers

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dc.authorid0000-0001-9700-5534
dc.authorid0000-0002-7101-363X
dc.authorid0000-0003-1751-9207
dc.contributor.authorYilmaz, Deniz
dc.contributor.authorCakmak, Gulce
dc.contributor.authorGueven, Mehmet Esad
dc.contributor.authorYoon, Hyung-In
dc.contributor.authorSchimmel, Martin
dc.contributor.authorYilmaz, Burak
dc.date.accessioned2026-01-24T12:31:17Z
dc.date.available2026-01-24T12:31:17Z
dc.date.issued2025
dc.departmentAlanya Alaaddin Keykubat Üniversitesi
dc.description.abstractStatement of problem: Currently available 3-dimensional (3D) additively manufactured (AM) resins used for definitive restorations have different chemical compositions and viscosities. The fabrication trueness and margin quality of laminate veneers additively manufactured with different resins have not been extensively studied. Purpose: The purpose of this in vitro study was to evaluate the fabrication trueness and margin quality of AM and subtractively manufactured (SM) definitive resin-based laminate veneers. Material and methods: A laminate veneer restoration for a maxillary right central incisor with a 25-mu m cement space was designed to generate a reference laminate veneer standard tessellation language (STL) file (RLV-STL). This RLV-STL was used to fabricate resin-based laminate veneers (N=60) for definitive use, either using AM (a low-viscosity, urethane acrylate-based resin (C&B Permanent, AM-LV), a high-viscosity, urethane acrylate-based resin (Tera Harz TC-80DP, AM-HV), and a glass-reinforced composite resin (Crowntec, AM-S) or SM (glass-filler reinforced composite resin blocks (Tetric CAD, SM) technologies. All laminate veneers were digitized with an intraoral scanner (CEREC Primescan SW 5.2) to generate their test STL files (TLV-STLs). RLV-STL and TLV-STLs were transferred into a 3D analysis software program (Geomagic Control X), and a trueness (external, intaglio, and marginal surface) analysis was performed by using the root mean square (RMS) method. The margin quality of laminate veneers was examined visually under a stereomicroscope and graded. The Kruskal-Wallis and Dunn tests were performed to analyze the data (alpha=.05). Results: External, intaglio, and marginal RMS values showed statistically significant differences among test groups (P<.001). The SM group had the highest RMS values for the external surface (P<.001), whereas the AM-LV group had the lowest RMS values. The AM-HV group had the highest RMS values for the intaglio surface (P<.001). No significant difference was found between the SM and AM-HV groups for marginal RMS values, which were higher than for the other groups (P=.830). All average values for the axial mesial, axial distal, and incisal edge margin quality of laminate veneers were found to be similar and Grade 3 (smooth edge) in all groups. Conclusions: Regardless of the evaluated surface, the fabrication technique affected the trueness of laminate veneers. The low-viscosity AM laminate veneers and AM laminate veneers reinforced with glass fillers had higher trueness than the SM laminate veneers at all surfaces. The low-viscosity AM laminate veneers had the highest trueness on external and marginal surfaces among the test groups and had higher trueness than the high-viscosity AM laminate veneers.
dc.description.sponsorshipIvoclar AG and Saremco Dental AG
dc.description.sponsorshipMaterials provided by Ivoclar AG and Saremco Dental AG.
dc.identifier.doi10.1016/j.prosdent.2023.09.011
dc.identifier.endpage192
dc.identifier.issn0022-3913
dc.identifier.issn1097-6841
dc.identifier.issue1
dc.identifier.pmid39492045
dc.identifier.scopus2-s2.0-85175242740
dc.identifier.scopusqualityQ1
dc.identifier.startpage184
dc.identifier.urihttps://doi.org/10.1016/j.prosdent.2023.09.011
dc.identifier.urihttps://hdl.handle.net/20.500.12868/5780
dc.identifier.volume133
dc.identifier.wosWOS:001412978800001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherMosby-Elsevier
dc.relation.ispartofJournal of Prosthetic Dentistry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20260121
dc.subjectTemporary Crown
dc.subjectPolymerization
dc.subjectMicroleakage
dc.subjectBridge
dc.titleComparison of trueness and margin quality of additively and subtractively manufactured definitive resin-based laminate veneers
dc.typeArticle

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