Introduction. Patients' awareness and knowledge of the endodontic treatment is a very important issue in everyday practice of a dentist. It influences significantly the course and effects of treatment. Aim. The paper presents an analysis of data collected from the patients about their concerns, expectations and perceptions about root canal treatment. Material and methods. Questionnaire surveys were conducted in a group of 203 patients consisting questions characterizing their knowledge about endodontic treatment – their expectations, experiences, possible complications and treatment costs. Results. Analyzing the experiences of patients regarding endodontic treatment, it was found that 69% of people in the past had experienced the procedure of root canal treatment. Most respondents define their state of knowledge of root canal treatment as an average. Fifty-seven percent of respondents admitted to knowing the price of endodontic treatment, 67% of them said that the cost was adequate to the complexity of the procedure. The study shows that most patients still choose specialists (38%). Conclusion. An improvement of knowledge and awareness of patients about the endodontic treatment has been observed.