A Comparative Evaluation of the Effect of Different Incisal Preparations on the Fracture Resistance and Fracture Pattern of Mandibular Anterior Porcelain Laminate Veneers Using Two Different Materials-An In Vitro Study

Vaidya, Nupur; Rodrigues, Shobha J; Hegde, Puneeth; Shetty, Thilak; Pai, Umesh; Mahesh, M.; Saldanha, Sharon

doi:10.5958/0973-9130.2019.00291.3

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2024

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Cited by 3 publications

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

Yıldız,

Güneş Ünlü,

Aydoğdu

2024

BMC Oral Health

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

Yıldız,

Güneş Ünlü,

Aydoğdu

2024

BMC Oral Health

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Evaluation of Vertical Marginal Discrepancy and Load-to-Failure of Monolithic Zirconia and Lithium Disilicate Laminate Veneers Manufactured in Different Thicknesses

YILDIZ,

Ünlü,

Aydoğdu

2024

Preprint

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Objectives 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 and lithium disilicate blocks. The intaglio surface of MZLV was treated with air abrasion using 110 µm diameter silica-modified aluminum oxide particles and ceramic primer, while LDLV was etched and treated with the same agent before cementation with composite resin. 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 analyzed 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

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Fracture Resistance of Two Preparation Designs on Anterior Laminate Veneers: A Systematic Review and Meta-analysis

Joseph¹,

Singh²,

Ravi³

et al. 2022

World Journal of Dentistry

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A Comparative Evaluation of the Effect of Different Incisal Preparations on the Fracture Resistance and Fracture Pattern of Mandibular Anterior Porcelain Laminate Veneers Using Two Different Materials-An In Vitro Study

Cited by 3 publications

References 0 publications

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

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

Evaluation of Vertical Marginal Discrepancy and Load-to-Failure of Monolithic Zirconia and Lithium Disilicate Laminate Veneers Manufactured in Different Thicknesses

Fracture Resistance of Two Preparation Designs on Anterior Laminate Veneers: A Systematic Review and Meta-analysis

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