The etiology, clinical picture, modern methods of diagnosis and treatment of dental abnormalities, dental rows and bite in different age periods are described, the most common mistakes in treatment are considered. The main aspects of diagnosis and treatment of patients with congenital pathology of the maxillofacial region . Clinical stages of application of the multibonding system are described , Features of denture prosthetics , dental rows and jaws in childhood and adolescence, preservation of space in the dentition in children with premature tooth extraction, space management in the dentition of children , as well as treatment of dental anomalies with the use of modern orthodontic devices. Intended for students of the 5th year of institutions of higher medical education .