Proceedings of the International scientific and practical conference ―Science, Technology and Culture: From Tradition to Digital Future‖ (December 8-10, 2025) / Publisher website: www.naukainfo.com. – Vienna, Austria, 2025. – 183 p.

43 MEDICAL SCIENCES AND PUBLIC HEALTH UDC 616.311-018-056.83-084:613.84 Bohdan Kravchenko Postgraduate Student, Department of Therapeutic Dentistry Shupyk National Healthcare University of Ukraine ORCID: 0009-0003-4511-1994 ORAL HEALTH PATTERNS IN CIGARETTE, HNB, AND SNUS USERS: A COMPARATIVE CLINICAL ANALYSIS Annotation. This study provides a comparative assessment of oral hygiene status among users of traditional cigarettes, heated tobacco systems (HNB), and smokeless tobacco (snus). Significant differences in DI-S, CI-S, MGI, and DMFT indices were observed, demonstrating unique risk profiles depending on the form of tobacco exposure. Cigarette smokers showed the greatest caries burden, HNB users exhibited the highest levels of soft and hard deposits, and snus users presented the strongest gingival inflammatory response. These findings highlight the necessity for personalised preventive strategies in dental practice based on tobacco-use type. Keywords: tobacco products; oral hygiene indices; DI-S; CI-S; MGI; DMFT; cigarette smoking; heated tobacco systems; snus; biofilm accumulation; gingival inflammation; dental prevention. Abstract. The study presents a comparative clinical evaluation of oral hygiene status among users of traditional cigarettes, heated tobacco systems (HNB), and smokeless tobacco (snus). A total of 44 participants were examined using DI-S, CI-S,