The branch of cosmetic dentistry at the University of Baghdad held a training course for the students and faculty members at the college entitled “Recent Concepts in Endodontics” via Zoom app to address some concepts related to the treatment of root fillings, including the treatment of Osteoarthritis (OA) using modern methods. The dentists recommend to sterilize root canals by the use of biologically active substances and innovative methods of diagnosis of neuropathic conditions by analyzing the levels of what is known as biomarkers extracted from fluids extracted from different oral tissues as an alternative to the traditional clinical methods, as well as minimally invasive treatment methods like in the case of neuritis to maintain its vitality while reviewing relevant symptoms.