The strength of the connection between orthodontic brackets and sandblasted dental ceramics was evaluated. The strength of the lock-ceramics connection was determined in four time intervals. Based on the obtained results, basic statistics were calculated. For the comparative analysis of average values, the following were used: ANOVA analysis of variance and Tukey's HSD post-hoc test at the significance level of α = 0.05. The statistical analysis performed did not show any influence of the method of surface treatment between orthodontic brackets and ceramics. At the same time, it has been shown that with the passage of time of storing samples in aqueous environment, the quality of the connection decreases significantly, regardless of the surface treatment method used.