An Endodontist who took his Master of Biological and Medical Sciences, Certificate in Genetics, Certificate in Molecular Basis and Professional Master of Endodontics from USJ, Beirut and took his State Diploma of Doctor in Dental Surgery and University Diploma of Doctor in Dental Surgery from The University of Rennes, France. He published many articles and presented many lectures and is currently a Clinical Professor at the Department of Endodontics FMD-USJ Beirut – Lebanon and has been performing Limited practice to Endodontics since 1996. Professor Gaby is our Endodontist who perform using high technology equipment including root canal treatment under microscope.