Dr Firas Haj Obeid, DMD, graduated from Pomeranian Medical University in 2022 and is a collaborator in the Department of Propaedeutics, Physical Diagnostics, and Dental Physiotherapy at the same university. Throughout his academic career, Dr Haj Obeid has actively engaged in scientific research, participating in several national and international medical conferences. His research concentrates on the effect of COX-2 gene polymorphism on oral health, the influence of smoking and dietary habits on dental health, and shifts in public health behaviour during the COVID-19 pandemic. He has also contributed to the analysis of materials and genetic studies related to susceptibility to caries, broadening his interests to include biological and behavioural factors affecting oral diseases. His current clinical and scientific pursuits focus on modern endodontics, conservative dentistry, and the integration of molecular diagnostics with dental care. Dr Haj Obeid is an active member of both the European Endodontic Society and the Polish Endodontic Society.