Evaluation of vertical marginal discrepancy and load-to-failure of monolithic zirconia and lithium disilicate laminate veneers manufactured in different thicknesses

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dc.authoridAydoğdu, Hasan Murat / 0000-0002-1179-8957
dc.contributor.authorYıldız, Pınar
dc.contributor.authorGüneş Ünlü, Damla
dc.contributor.authorAydoğdu, Hasan Murat
dc.date.accessioned2025-01-27T20:52:30Z
dc.date.available2025-01-27T20:52:30Z
dc.date.issued2024
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractObjectives This study aimed to evaluate the feasibility of monolithic zirconia laminate veneers (MZLV) compared to lithium disilicate laminate veneers (LDLV). Materials and methods Sixty resin replicas, each prepared with depths of 0.5 mm, 0.7 mm, and 1 mm, were produced using a 3D printer from acrylic teeth. Laminate veneers of these thicknesses were milled from pre-sintered monolithic zirconia (3rd generation) and lithium disilicate blocks. The intaglio surface of MZLV was treated with air abrasion using 110 μm diameter silica-modified aluminium oxide particles and ceramic primer, while LDLV was etched with etchant gel and treated with the ceramic primer before cementation with resin cement. Vertical marginal discrepancy (VMD) was assessed using a stereomicroscope, and a load-to-failure test was conducted using a universal testing machine. Failure modes were evaluated macroscopically on fractured surfaces. Data were analysed statistically using Two-way ANOVA and Bonferroni correction (α = 0.05). Results LDLV samples exhibited significantly larger VMD compared to MZLV samples across all thicknesses, especially in cervical, palatal, and mean data. Within the LDLV group, load-to-fracture values for 0.7 mm and 1.0 mm thicknesses were similar, whereas for 0.5 mm thickness, it was significantly lower. In the MZLV group, load-to-fracture values were lower for 0.7 mm and 1.0 mm thicknesses compared to LDLV, but higher for 0.5 mm thickness. Conclusions Material choice and restoration thickness significantly influence laminate veneer restorations’ success. MZLV generally exhibits superior vertical marginal fit compared to LDLV, with varying load-to-failure values across different thicknesses. Clinical management of debonding in MZLV is simpler compared to restoration fracture in LDLV. Clinical relevance Considering clinical factors, MZLV may be a preferable option to LDLV for this restoration with the thickness of 0.5 mm.
dc.description.sponsorshipScientific Research Projects Unit of Nuh Naci Yazgan University, Kayseri/Turkiye [2020-SA.DH-BP/11]
dc.description.sponsorshiphis study was supported by the Scientific Research Projects Unit of Nuh Naci Yazgan University, Kayseri/Turkiye, grant no 2020-SA.DH-BP/11
dc.identifier.doi10.1186/s12903-024-04685-w
dc.identifier.issn1472-6831
dc.identifier.issue1
dc.identifier.pmid39118080
dc.identifier.scopus2-s2.0-85200729349
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1186/s12903-024-04685-w
dc.identifier.urihttps://hdl.handle.net/20.500.12428/25780
dc.identifier.volume24
dc.identifier.wosWOS:001287515400004
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherBMC
dc.relation.ispartofBmc Oral Health
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20250125
dc.subjectMonolithic zirconia
dc.subjectLithium disilicate
dc.subjectLaminate veneer
dc.subjectVertical marginal discrepancy
dc.subjectLoad-to-failure
dc.titleEvaluation of vertical marginal discrepancy and load-to-failure of monolithic zirconia and lithium disilicate laminate veneers manufactured in different thicknesses
dc.typeArticle

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