Mohamed Abdulaziz Mohamed Elsayed worked in Mansoura university as assistant professor in 2002-2004 then worked in different hospitals in gulf areas endodontic consultant. He graduated from Faculty of Dentistry, Mansoura University, Egypt in 1990 and ranked the first. I got Master degree in conservative dentistry from the same university in 1996. I got PhD in Endodontic in 2002 from Mainz University. I joined Ajman university in 2005 and now I am worked as Associate professor of endodontic in the Master restorative program. My research interest is related to endodontic branch particularly new obturation materials. My clinical work is related to microscopic endodontic treatment using surgical microscope.