Dental diseases are known to be frequently accompanied by such symptoms and conditions as pain and psychological discomfort. Hence, the necessity of an approach going beyond consideration of the clinical signs of the developing disease and tissue destruction. The International Classification of Functioning, Disability and Health (ICF) is a detailed system and classification providing a basis for the comprehensive treatment of patients using the dental prosthetic technologies. This paper describes the structure of the classification and the system of coding. A clinical example of the application of ICF instruments is presented.