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Comparative evaluation of the shear bond strength of lithium disilicate veneers using one light-cure and two dual-cure resin cement: An in vitro study.
J Conserv Dent Endod 2024 January
AIM: The present in vitro study aimed to comparatively evaluate the shear bond strength (SBS) of one light-cure and two dual-cure resin cement to bond lithium disilicate veneers.
MATERIALS AND METHODS: Thirty maxillary central incisors ( n = 30) were procured and randomly divided into three groups of adhesive/resin cement systems, into groups of 10 each ( n = 10); Group A: Adper Single Bond 2/RelyX Veneer Cement, Group B: Prime and Bond NT/Calibra, and Group C: Excite DSC/Variolink II. All the tooth samples were etched and respective bonding agent was applied. Similarly, all the laminate veneer specimens were etched, silanated, and treated with respective bonding agents before cementation with the respective resin cement. The SBS was measured in a universal testing machine with a cross-head speed of 1 mm/min.
STATISTICAL ANALYSIS: Data obtained were analyzed using the one-way analysis of variance and post hoc Tukey's test at a 5% significance level.
RESULTS: The highest SBS was demonstrated by Group C (18.8 ± 0.92 Mpa), followed by Group B (18.4 ± 0.74) Mpa, and the least by Group A (17.4 ± 0.75 MPa). Significant differences were found between Group A, Group B, and Group C, respectively. However, Group B and Group C did not differ significantly from each other.
CONCLUSIONS: Dual-cure resin cement have higher SBS than the light-cure variants.
MATERIALS AND METHODS: Thirty maxillary central incisors ( n = 30) were procured and randomly divided into three groups of adhesive/resin cement systems, into groups of 10 each ( n = 10); Group A: Adper Single Bond 2/RelyX Veneer Cement, Group B: Prime and Bond NT/Calibra, and Group C: Excite DSC/Variolink II. All the tooth samples were etched and respective bonding agent was applied. Similarly, all the laminate veneer specimens were etched, silanated, and treated with respective bonding agents before cementation with the respective resin cement. The SBS was measured in a universal testing machine with a cross-head speed of 1 mm/min.
STATISTICAL ANALYSIS: Data obtained were analyzed using the one-way analysis of variance and post hoc Tukey's test at a 5% significance level.
RESULTS: The highest SBS was demonstrated by Group C (18.8 ± 0.92 Mpa), followed by Group B (18.4 ± 0.74) Mpa, and the least by Group A (17.4 ± 0.75 MPa). Significant differences were found between Group A, Group B, and Group C, respectively. However, Group B and Group C did not differ significantly from each other.
CONCLUSIONS: Dual-cure resin cement have higher SBS than the light-cure variants.
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