Ezio Bruna, Member of the Academy of Operative Dentistry, The International Academy of Gnathology, and the New York Academy of Sciences. Speaker at national and international congresses. He has a private practice in Turin Andrea Fabianelli, Temporary Chair Professor and Temporary Professor at the University of Siena, he collaborates with TUFTS University (Boston, USA) and with Sheffield University (UK), active member of Dick Tucker Study Club and Research Centre for Dentistry. He has a private practice in Arezzo. Jason Smithson, Qualified at the Royal London Hospital in 1995; achieving a number of awards including The Constance Klein Memorial, The Stafford Millar, and The Malcolm Jenkins Scholarships, The American Association of Endodontics Prize and the Overall Award for Clinical Dentistry. Post-Graduate Clinical Lecturer in both the Cornwall & Isles of Scilly and Plymouth Foundation Dental Practitioners Schemes.Resident Faculty at The Centre for Esthetic Excellence, Chicago, USA. He is an Accredited International Trainer for Carl Zeiss Dental Academy. --This text refers to the hardcover edition.