Dr Dimitris Emmanouil graduated from Athens University, School of Dentistry in 1984. He specialized at Children’s Hospital of Wisconsin, USA in Pediatric Dentistry. He holds an MS from Marquette University, USA and a PhD from the University of Athens, Greece. He has done extensive research work on nitrous oxide pharmacology that won awards from AAPD, IAPD and ASDA. He has published in the international literature mainly on Nitrous oxide pharmacology as well as contributing author of the book “Odontoiatria Speciale per il paziente critico e diversamente abile”(Italian Lanquage). He is currently adjunct Assistant professor at Washington State University, School of Pharmacy, USA where he continues his research and Lecturer at the Department of Pediatric Dentistry, University of Athens Dental School. Dr. Emmanouil has been serving the dental needs of children and special patients in Athens, Greece and Rome, Italy since 1988. His extensive education has led him around the world, invited in various occasions to lecture both nationally and internationally.