ABSTRACT
Background: Loss of hard tissues is diverse in its localization and can manifest itself in the area of one, several or all of the patient's teeth, one of the most serious consequences of this pathology is a decrease in the height of the lower third of the face. Materials and Methods: The paper presents the results of a comprehensive dental examination and survey data of 98 patients. During the study, patients were divided by age groups, gender characteristics, pathological disorders and depending on the plane of erasure (horizontal, vertical, mixed) teeth. The prevalence and factors of the development of increased abrasion of hard tissues of teeth were determined. Conclusion: Local exogenous and general endogenous factors turned out to be a more frequent cause of increased tooth abrasion for residents of the city of Kaspiysk.