Periodontitis and gingivitis are complex infectious diseases, which led to damage of the tooth supporting apparatus. In general, various periodontal diseases represent a vast problem in modern dentistry with a prevalence of 20-80% in the world population. Knowledge of the inflammatory periodontal disease’s frequency with violation of the integrity of the dentition directly helps the practicing dentist to decide on the diagnostic tactics of patients and helps to develop skills for the prevention of periodontitis and patient motivation. The purpose of this article is to determine the prevalence of periodontitis in the population according to the data of modern literature sources. The study of publications was produced in the electronic databases such as Google Scholar, PubMed during a systematic review of the literature. Included articles contain information about prevalence of inflammatory periodontal diseases, relationship between general health conditions and periodontitis. The publication date criterion was selected from 2017 to 2023. 178 articles were viewed during the review. After analyzing the literature for inclusion criteria, the total number of publications has become 50. Based on the analyzed data, it can be concluded that inflammatory periodontal diseases are a fairly common pathology. © (2023), (University of Dicle). All Rights Reserved.