The textbook contains the following sections: dental anatomy, endodontic instruments, root canal treatment techniques, medications used in endodontics, tools and methods of dental root canal obstruction. The textbook corresponds to the work program of the discipline «Dentistry».It is recommended for second-year students of educational institutions of higher professional education who are studying in the discipline «Dentistry», the section of the discipline «Propaedeutics of Dental Diseases».