Prelector Dr. Nuri Sertaç SIRMA, whom served long years to Marmara University and Faculty of Dentistry on both adminstrative and academic fields, deceased from complications related to Covid-19. We are living in a deep sorrow of losing one of our best employee, whom be loved by everybody and be an example with his hardworking, helpful and honest nature. We wish our condolonces to our collague's family and relatives.