Karen Levon Grigoryan, founder-president of Avanta Innovative Medical Center, Candidate of Medical Sciences, docent, member of European Association of osteointegration, president of Armenian Association of Implantologists, one of the contributors in the dental implants system in Armenia. He created and worked up the first Armenian system of implantats. He is author of 15 inventions in the field of implantology. He placed more than 8000 implants during about 22 years of work experience. The number of retrainings exceeds 100 (Moscow, The National and Kapodistrian University of Athens, Loma Linda University in USA, Glasgow, Cologne, Paris, Monaco, Shanghai, Copenhagen, Kiev, Yalta, Dubai, etc.). Since 2003, he is the chief stomatologist-surgeon, implantologyst of Ministry of Healthcare of The Republic of Armenia.