Effect of luting agent on the bond strength of ceramic-based lithium disilicate and titanium abutment subjected to artificial aging

Washington Reis Leite, Paulo Henrique De Souza Pereira, Laís Regiane Da Silva Concílio


This study aimed to evaluate the bond strength (BS) of a ceramic coping-abutment implant interface according to the luting agent, before and after thermal cycling (TC). Methodology: Forty ceramic copings and abutments (Ti) were divided into four groups (n=10): OZ (zinc oxide eugenol free), PZ (zinc phosphate), GIC (resin modified glass ionomer), and RC (adhesive resin cement). BS test was performed using a universal testing machine before and after TC. Analysis of variance (ANOVA) and Tukey test (p<0.05) were performed for the means. Results: The results showed that before TC, the values ranged from 50.77 N (OZ) to 240.21 N (GIC). After TC, the values showed intermediate results - 3.5 N (OZ) and 330.66 N (RC), 90.58 N (PZ), and 280.43 N (GIC). OZ performed the worst, both before and after TC. Before TC, GIC had the highest value. After TC, RC had the highest value of BS. Conclusions: The aging process influenced and inverted the results of the GIC and RC groups, and had a greater negative impact on the OZ group.


Luting agent; Bond; Lithium disilicate; Artificial aging

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DOI: http://dx.doi.org/10.29232/2317-2835.2017v22i1.p7-13


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