Evaluation of repair bond strength with different methods for zirconia restorations

Abstract

Analysis was done using graph pad Instat (graph pad, Inc.) software. Value of p ≤ 0.05 is considered significant. Homogeneity of variance and errors normal distribution confirmation was done; a 2-way analysis of variance (ANOVA) was performed.

Descriptive statistics of shear bond strength (Mpa) to show mean, standard deviation (SD), minimum, maximum and 95% confidence intervals (low and high) values of different surface treatments are shown in Table 2 with graph shown in Fig. 6. CO surface treatment recorded statistically non-significant higher shear bond strength mean value (8.45 ± 0.7 Mpa) than CL surface treatment (7.67 ± 2.55 Mpa) as indicated by paired t-test