Giorgio Tabanella – Rome, IT Periodontics and Implantology – USC-University of Southern California Los Angeles USA - DDS,MS, Diplomate of the American Board of Periodontology Dr. Tabanella is a Diplomate of the American Board of Periodontology, Active Member of the Italian Academy of Esthetic Dentistry and author of the book “Retreatment of failures in dental medicine”. He graduated from the University of Southern California-Los Angeles-USA where he obtained the Certifi cate in Periodontics as well as the Master of Science in Craniofacial Biology. He is Director of O.R.E.C.-Oral Reconstruction and Education Center (www.tabanellaorec.com), reviewer and author of original articles.