A training course on oral microbes and their role in gum disease and tooth decay was held at the College of Dentistry, Al-Qadisiyah University. Under the patronage of the President of Al-Qadisiyah University, Professor Dr. Rahi Kalaf Mahdi Al-Yassiri, and under the supervision of the Dean of the College of Dentistry, Professor Dr. Ali Hassan Ali Murad, the Continuing Education Unit at the College of Dentistry organized a training course entitled “Oral Microbes and Their Role in Gum Disease and Tooth Decay.” The course was presented by Assistant Lecturer Ruqaya Hussein Abdul. The course aimed to identify the types of oral microbes and their mechanisms of influence in the development of gum disease and tooth decay, while clarifying their role in oral health and the prevention of these diseases. It also sought to raise awareness of methods for controlling microbes and reducing their clinical complications. The course recommended the necessity of adhering to regular oral hygiene practices to reduce the proliferation of oral microbes, along with undergoing periodic dental checkups. It also emphasized the importance of health education and the use of appropriate preventive measures to reduce gum disease and tooth decay.