Aged Translucent Aesthetic Zirconia: Bond Strength Analysis.

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 ( < 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.