Materials and Methods: During the study, we used the following methods: laboratory, experimental, scanning electron microscopy, morphological studies and analysis of the elemental composition of structures (samples) were carried out using a scanning electron microscope and statistical. Results: Scanning electron microscopy of ceramic samples after etching showed changes in the surface structure, which consisted in an increase in micro spaces, more frequent and deeper relief of irregularities with increasing etching time, acid concentration and activation of the etching gel. On the surface of samples etched for 60 seconds in 9% HF, irregularities of the cellular structure with a size of 5 to 18 µm were detected. The differences between statically and dynamically etched samples are clearly visible. Conclusions: Thus, our study confirms the safety of using sandblasting to clean ceramics, the importance of dynamic etching at the stage of preparing ceramics for fixation, and the effectiveness of using an alcohol adhesive protocol. The results obtained, based on the principles of evidence-based medicine, can be used by dental professionals to improve the quality of treatment of patients with defects in the hard tissues of the teeth.