Dr. Homa Zadeh is an internationally renowned periodontist recognized for his clinical and scientific expertise. Dr. Zadeh is a Diplomate of the American Board of Periodontology and Implant Surgery. He has served as tenured associate professor, of the post-doctoral periodontology (2012 to 2019), as well as Chair of Periodontology Section (2003-2006) at USC Ostrow School of Dentistry. Dr. Zadeh graduated from the University of California Los Angeles (UCLA) with a BS degree, followed by Doctor of Dental Surgery (DDS) from USC Ostrow School of Dentistry. He completed post-doctoral clinical training in periodontology, as well as a PhD degree in immunology, at the University of Connecticut Health Center (UCHC) School of Dental Medicine and School of Medicine, respectively. Dr. Zadeh has lectured nationally and internationally in over 30 countries at prestigious conferences on topics ranging from aesthetics to minimally invasive periodontal and implant surgery, as well as tissue engineering.Dr. Zadeh served as president of the Western Society of Periodontology (WSP) in 2017, which is the largest regional periodontology society spanning the 16 western US states and Canadian provinces.Dr. Zadeh is the innovator of the VISTA technique recognized around the world as one of the most effective methods for the treatment of gingival recession. He has also innovated many concepts and devices, which have been patented and developed into products in clinical use in many countries.Dr. Zadeh has an extensive publication track, including over 100 publications in peer-reviewed journals and numerous book chapters. He serves as an editorial reviewer for many scientific journals.He served as a chartered scientific reviewer to the National Institutes of Health (NIH) and chaired a scientific panel at the NIH Center for Scientific Review. Dr. Zadeh has served as the director of USC International Periodontal and Implant Symposium. Dr. Zadeh is the recipient of many honors and awards, including outstanding teaching award and outstanding service award from USC Ostrow School of Dentistry and many research grants.He is an active member of the American Academy of Periodontology, Western Society of Periodontology (WSP), Academy of Osseointegration (AO), American Academy of Implant Dentistry (AAID), American Dental Association (ADA), California Dental Association (CDA), San Fernando Valley Dental Association (SFVDA) and Santa Barbara Ventura Dental Association (SBVDA).

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.

1987 bis 1990 Volkschule Eichgraben 1990 bis 1994 Sacre Coeur Preßbaum Realgymnasium 1995 bis 2000 De La Salle Schulbrüder 1210 Wien, Strebersdorf, Realgymnasium mit Reifeprüfung 2000 bis 2001 Wehrdienst 2000 bis 2007 Studium der Zahnmedizin an der medizinischen Universität Wien 2008 Staatsexamen und Diplomarbeit 2004 bis 2008 Mitarbeit im Praxislabor Dr. Zips 2008 bis 2010 zahnärztliche Vertretungsarbeiten bei Fr. Dr. Frotz Waltraud, 1170 Wien 2008 bis 2014 Mitarbeit in der familieneigenen Ordination mit Labor 2012 zahnärztliches Fortbildungsdiplom 2013 Presentation Skills Training for lecturers 2014 Referent/KOL für 3M Oral Care seit 2015 Übernahme der familieneignen Ordination in 3. Generation und Zusammenarbeit mit ZTM Richard Zips (Laborleiter) 2016 Referent für ivoclar vivadent (Prothetik)

2002 bis 2008 Studium der Zahnmedizin an der medizinischen Universität Wien 2008 bis 2011 Lehrberufsausbildung zum Zahntechniker im Praxislabor Dr. Roman Zips; Abschluss der Lehre mit gutem Erfolg 2011 bis 2015 Leitung des familieneigenen Praxislabor als Zahntechniker 04/2014 Zertifizierter Anwender des Biofunktionellen Prothetik Systems (BPS); Zertifikat zur Verwendung des geschützten Markennamens der BPS-Marken-Prothetik (Ivoclar) 01/2013 bis 07/2014 Ausbildung zum Zahntechnikermeister mit Meisterprüfungszeugnis 01/2015 Eröffnung des eigenständigen Dentallabors „Dental ZIPS Zahntechnik“ 2014 Vorträge für 3M mit Dr. Gerhard Zips „MDI´s erfolgreich gesetzt und was nun? Ein Zusammenspiel zwischen Zahnarzt und Zahntechniker“ 11/2014 Vortrag für Merz-Dental und Quintessenz 18. Prothetik Symposium in Berlin 06/2015 Case Report in der Zeitschrift Quintessenz Zahntechnik „Mini-Implantate als Pfeilervermehrung und Prothesenstabilisierung. Ein interdisziplinäres Konzept von Zahnarzt und Zahntechniker“ 2016 Diverse Vorträge für Ivoclar Vivadent, Präsentation (Roadshow in Österreich) des neuen SR Vivodent SPE Prothesenzahn mit Dr. Gerhard Zips - "Natürlich & funktionell - einfach überzeugend. Rot-Weiß Ästhetik in der Teil- und Totalprothetik mit System“ 2018 Umbau, Revitalisierung und Digitalisierung des Dentallabor ZIPS

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.

Internationally renowned for his achievements in the fields of periodontal and peri-implant diseases as well as esthetic periodontal soft tissue corrections, Dr. Zuhr is one of the world's leading oral surgeons. Together with Prof. Dr. Hürzeler, he wrote a specialist book in 2011 which, according to his colleagues, is "without doubt one of the most important oral surgery publications of recent years and a must-read for every periodontist and implantologist." Dr. Zuhr studied dentistry in Aachen and in the USA. He is a specialist in Periodontology and has been a board member of the German Society of Periodontology since 2007.