The book outlines the basics of using digital examination methods to evaluate the dental status of teeth. Examination of healthy and damaged teeth by various etiological factors is provided. Taking into account the development of computer technology, their basic data used in the practice of digital dentistry are presented. Particular attention is paid to the assessment of dental hard tissue defects through the use of index evaluation - IROPZ. Classifications are given. Mistakes and complications arising from incorrect examination of patients in dental practice are shown. The book is intended for dental students and practitioners.