
Andreas Nolte
Germany, MünsterAndreas Nolte completed his training as a dental technician in Lübbecke, Germany, and subsequently worked in various laboratories. After traveling domestically and abroad in 2001 and 2002, he founded his own company, Enamelum et Dentinum, in Münster, Germany, in 2002. Since 2004, he has been operating his own laboratory and training center in the heart of Münster. His passion is primarily focused on ceramic restorations on natural teeth and implants. He collaborates closely with the dental industry as a developer, which has led to the creation of, among other things, the Color and Texture System DD Contrast. Andreas Nolte is the author of several articles published in Quintessenz Zahntechnik, Teamwork, Dental Labor, and Dental Dialogue. In addition, he has been active as an international speaker since 2000. He is a member of the advisory board for Quintessenz Zahntechnik and Dental Dialogue. Furthermore, he has been a member of Group 65 for several years.

John Nusstein DDS, MS
United States of AmericaDr John Nusstein received his DDS from the University of Illinois at Chicago College of Dentistry in 1987. He served 12 years in the U.S. Air Force and completed his endodontic training at The Ohio State University in 1995, earning a certificate in endodontics and an MS for research involving intraosseous anesthesia. Dr Nusstein has been a Diplomate of the American Board of Endodontics since 1999. He became a full-time educator at The Ohio State University College of Dentistry in 2000 and is now a tenured professor, was appointed Chair of the Division of Endodontics in 2006, and holds the William J. Meyers Endowed Chair in Endodontics. He has authored/coauthored over 100 scientific articles and 9 chapters in leading endodontic textbooks. His focus of research is local anesthesia and pain control and ultrasonic irrigation.

Olaf Oberhofer
Germany, Erwitte
PD Dr. Karina Obreja
Germany, Frankfurt am MainSeit 02/2022 Habilitation und Verleihung der Venia Legendi für das Fach Zahn-, Mund- und Kieferheilkunde Thema: „Risikofaktoren für die Entstehung und Therapie periimplantärer Infektionen“. Seit 01/2016 Notfallbeauftragte ZZMK Carolinum gGmbH. Seit 01/2016 Oberärztin ZZMK Carolinum, Poliklinik für Zahnärztliche Chirurgie und Implantologie Frankfurt, Prof. Dr. G.-H. Nentwig/ April 2017 – Februar 2018 Kommissarische Leitung: Prof. Dr. mult. R. Sader, seit 02/2018: Prof. Dr. F. Schwarz. Seit 08/2015 Fachzahnärztin für Oralchirurgie, ZZMK Carolinum, Poliklinik für Zahnärztliche Chirurgie und Implantologie Frankfurt, Prof. Dr. G.-H. Nentwig. Von 03/2013 – 08/2015 Assistenzzahnärztin Weiterbildung Oralchirurgie, ZZMK Carolinum, Poliklinik für Zahnärztliche Chirurgie und Implantologie Frankfurt, Prof. Dr. G.-H. Nentwig. Von 08/2012 – 03/2013 Assistenzzahnärztin Weiterbildung Oralchirurgie, Klinik für Mund-, Kiefer und Plastische Gesichtschirurgie Frankfurt, Prof. Dr. mult. R. Sader.

Dr. med. Hans Peter Ogal
SwitzerlandDr. med. Hans P. Ogal Facharzt für Anästhesiologie, Leiter der Schmerzambulanz an der Aeskulap-Klinik Dr. Brandner, Zentrum für Ärztliche Ganzheitsmedizin, in Brunnen am Vierwaldstättersee/Schweiz, Dozent der Deutschen Ärztegesellschaft für Akupunktur (DÄGfA) und weiterer Fachorganisationen.

Ernst Oidtmann
Germany
Michael Okuji DDS, MPH, MBA
United States of AmericaGroup Director, General Clinic
Academic Administrator, Division of Restorative Dentistry
School of Dentistry
University of California, Los Angeles

Dr. Miguel A. Ortiz DMD
United States of America, BostonMiguel A. Ortiz, DMD, has become recognized around the world for his proficiency in dental photography and cinematography. Recognizing a need for dental photography training in the US, he created MaoPhotographs, a dental photography curriculum that has since expanded internationally. Through these courses, he brings awareness to evidence-based dentistry, attention to detail, and craftsmanship. He is the author of Lit: The Simple Protocol for Dental Photography in the Age of Social Media (Quintessence Publishing, 2019). Dr Ortiz lectures nationally and internationally on prosthodontics and dental photography and is a full-time prosthodontist on the dental team of Brookline Dental Center in Boston.

Juan Carlos Ortiz Hugues DDS
Juan Carlos Ortiz Hugues, DDS, is a certified ergonomics assessment specialist who lectures and provides trainings on advanced dental ergonomics, mainly related to dental microscopy. He serves as the vice president of the Academy of Microscope Enhanced Dentistry (AMED) and maintains a private practice limited to endodontics in David, Panama. He wrote his book to encourage dental professionals to adopt better practices so they can live and work pain-free.
