Doctor of Stomatology (Center of Periodontology),
Periodontist, graduated from Peking University School and Hospital of Stomatology,
Member of the Periodontology Committee of the Chinese Stomatological Association

Doctor of Stomatology, Prosthodontist, graduated from and Attending at Peking University and Hospital of Stomatology
Member of the European Association for Osseintegration (EAO), Member of the International College of Prosthodontists (ICP), Chinese Society of Stomatology, Temporomandibular Joint Diseases and Academic Committee member

Professor und Direktor
Abteilung für Parodontologie
Niigata University Graduate School of Medical and Dental Sciences
Niigata, Japan

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