He received his dental degree from the Faculty of Dentistry at Semmelweis University, Budapest (Hungary). Upon his graduation, Maciej pursued a Doctor of Medical Sciences title, obtained after pass with honors for his dissertation defense on composite inlays-onlays in the restoration of endodontically treated teeth. Maciej has been a long-time researcher and lecturer, working with dental students at the Department of Propedeutics of Conservative Dentistry of CMUJ, Krakow. During his International Association of Dental Research scholarship, he conducted research work on adhesive bridges (FDPs) as well as the restoration of endodontically treated teeth at the universities of Leeds and Manchester. He has been a visiting professor at the University of Chieti (Italy), and visiting lecturer the UIC University (Barcelona). In 2021 he became a mentor at the prestigious Kois Center in Seattle. In 1999 Maciej established his private practice “Dentist” in Krakow and maintains it with his energetic attitude and everlasting passion. Maciej takes pride in being Editor-in-Chief of the Quintessence for Dentists journal. His book, EndoProsthodontics: A Guide for Clinical Practice, has achieved success and is now published in English, Chinese, Croatian, French, and Russian. He has authored more than 80 scientific papers in both national and international journals. Maciej is also an active member in the Italian restorative dentistry research group “Style Italiano,” as well as the Polish Academy of Esthetic Dentistry. In 2019 he became a certified member of European Society of Cosmetic Dentistry.
Dr. Zhang is a Professor in the Department of Preventive and Restorative Sciences at Penn Dental Medicine. He received his B.S. in Physics from Shanghai Normal University in 1986 and his M.S. in Physics from La Trobe University, Victoria, Australia in 1997. He went on to earn his Ph.D. in Materials Science and Engineering from Monash University, Victoria, Australia in 2002. Dr. Zhang completed his first Research Fellowship in Materials Science and Engineering at Monash University in 2002. For his second research fellowship, which was completed in 2005, Dr. Zhang worked on a joint project among New York University College of Dentistry, the National Institute of Standards and Technology, and the American Dental Association Foundation. Prior to joining Penn Dental Medicine, Dr. Zhang was on the faculty at New York University College of Dentistry in the Department of Biomaterials and Biomimetics. During his time at NYU, he was recognized for his commitment to excellence in research and teaching, receiving The Kathleen C. Kinnally Award for Outstanding Scientific Achievement in 2018 and the Outstanding Teaching Award, given by the Faculty Council, in 2015. Dr. Zhang’s main research interests are: (1) Developing functionally graded and nanostructured materials for dental and biomedical devices; (2) Elucidating competing damage modes in all-ceramic restorations under mastication; (3) Characterizing the wear and fatigue behavior of dental materials; and (4) Improving the fracture resistance of veneered prostheses through the reduction of deleterious residual tensile stresses.
Doctor of Stomatology (Center of Periodontology)
Periodontist, graduated from and Attending at Peking University School and Hospital of Stomatology
Member of the European Association for Osseointegration (EAO), Member of the Periodontology Committee of the Chinese Stomatological Association
Graduated in 1988 with a degree in dentistry from the University of Bologna, Italy. He was awarded a PhD in medical biotechnology from the same university. Professor of periodontology at the University of Bologna, Italy. Head of the Department of Periodontology and Dental Hygiene at the University of Bologna, Italy. Coordinator of the degree course in Dental Hygiene at the University of Bologna, Italy. Honorary member of the American Academy of Periodontology (AAP). President of the Italian Academy of Osseointegration (IAO). Member of the editorial boards of the International Journal of Periodontics and Restorative Dentistry, the Journal of Periodontology, and the International Journal of Oral Implantology. Associate editor of the International Journal of Esthetic Dentistry. Active member of the European Academy of Esthetic Dentistry (EAED), the Italian Society of Periodontology (SIdP), the Italian Academy of Osseointegration (IAO), and the European Federation of Periodontology (EFP). Author of more than 130 scientific publications in the field of periodontics and implantology. Winner of various awards in Europe and the United States for scientific research in the field of periodontology. Co-author of two illustrated textbooks on periodontal plastic surgery (Ed. Martina) and of the chapter “Mucogingival Therapy—Periodontal Plastic Surgery” in Clinical Periodontology and Implant Dentistry (Lindhe J, Lang NP, Karring T [eds]; Wiley-Blackwell). Author of the book Mucogingival Esthetic Surgery, published by Quintessence Publishing and translated into 12 languages. Speaker at major Italian and international conferences on the topics of periodontics and implantology.
Otto Zuhr studied dentistry at the University of Aachen from 1986 to 1992. He is board-certified specialist in Periodontology of the German Society of Periodontology (DGParo) and runs a private office together with Marc Hürzeler in Munich, Germany dedicated to periodontology and implant dentistry. With more than 25 years of clinical experience and teaching practice, Dr. Zuhr has become a proven expert in his field well beyond the European borders. From 2007 to 2014 he was board member of the German Society of Periodontology (DGParo) and he`s presently holding an associate professorship position at the Department of Periodontology of the Johann-Wolfgang-Goethe University in Frankfurt/Main, Germany (Director: Prof. Peter Eickholz). Otto Zuhr has written several refereed scientific articles in the field of periodontology and implant dentistry. His book "Plastic Esthetic Periodontal and Implant Surgery" was published by Quintessence Publishing in 2012. His research activities are focused on oral soft tissue wound healing and oral soft tissue reconstruction.