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Aged Translucent Aesthetic Zirconia: Bond Strength Analysis
Bernardo Luiz Gallina1, Mauro Carlos Agner Busato2, Eliseu Augusto Sicoli1
1Department of Prosthodontics, Western State University of Paraná, Paraná, Brazil.
Objective:
This study evaluates the bond strength of two compositions of aesthetic translucent zirconia (TZ).
Materials And Methods:
For this evaluation, test specimens were prepared from ICE Zirkon TZ and Prettau Anterior zirconia (PAZ) that were stored in distilled water at 37°C for two time periods: T1 (24 h) and T2 (90 days) to simulate aging. Two factors were evaluated for the samples-ceramic and aging time. The samples were subjected to tests of microshear strength and fracture type and were evaluated using scanning electron microscopy.
Results:
The results were analyzed using the D'Agostino test, analysis of variance, and Tukey's test (p < 0.01). Statistically significant differences were observed for ceramic type and aging time.
Conclusion:
The results showed that PAZ provides significantly superior performance to TZ at the two aging times evaluated.
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