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Dan Lazar graduated from the Faculty of Dentistry in Cluj-Napoca, Romania, in 2005, and has since completed extensive post-graduate training in prosthetic and restorative dentistry across Romania and Europe.
From 2007 to 2009, he taught in the Restorative Department at the Faculty of Dentistry. Since 2005, he has been practicing in his private clinic in Oradea, Romania.
Driven by a passion for beauty, Dan has developed a deep expertise in dental photography, exploring both the technical and artistic aspects, as well as the aesthetic perception of the smile and anterior region design.
Since 2009, he has been an international lecturer, sharing his knowledge on direct composite restorations, anterior prosthodontics, and dental photography in Romania and abroad.

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Dr. Filippo Cardinali graduated summa cum laude in Dentistry and Dental Prosthesis from the University of Ancona in 1992. He is a highly respected figure in the field of endodontics, serving as an Active Member and former President of the Italian Society of Endodontics, and maintaining memberships with the Italian Society of Conservative Dentistry, the European Society of Endodontology, and the American Association of Endodontists. He is also recognized as a Diamond Member of Styleitaliano Endodontics and currently chairs the Precision Endodontics Committee of the World Stomatological Association.
Dr. Cardinali is a prolific author and co-author of several influential publications in endodontics, including Testo Atlante di Anatomia Endodontica (2011), Isolamento del campo operatorio (2013), Manuale di Endodonzia (2013), the iBook The Isolation Game, and Ritrattamenti: soluzioni per le patologie apicali di origine endodontica (2018), which is available in multiple languages including English, Spanish, Russian, Portuguese, Polish, Taiwanese, Korean, and Chinese.
An experienced educator, Dr. Cardinali lectures on both theoretical and practical aspects of endodontics and operative field isolation, presenting at courses and conferences both in Italy and internationally. He maintains a private practice focused primarily on Endodontics and Restorative Dentistry, and has contributed extensively to national and international dental journals.

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Dr. Iwata Jun is a highly qualified dental professional with a DDS (Doctor of Dental Surgery) degree from Kagoshima University, Japan, obtained in 2005, and a PhD from Osaka University, Japan, received in 2009.
After gaining extensive postgraduate expertise in restorative and esthetic dentistry, Dr. Jun established his private practice in Takasago, Hyogo, Japan, in 2016, offering specialised services in prosthodontics.
Since 2010, Dr. Jun has been an active member of the Japan Dental Association, Osaka branch. Additionally, Dr. Jun serves as the director of the "Composite Restoration Practice Course Micerium ENA HRi," sponsored by Forest-One since 2016, demonstrating leadership and commitment to advancing dental education.
Dr. Jun's contributions extend beyond clinical practice, as evidenced by authored articles such as "Important Factors to Optimize Clinical Cases through Wax-Up Evaluation," published in October, November, and December 2015, and "Performing Temporary Restorations in the Dental Office," published from January to April 2018 in QDT, a publication by Quintessence, Japan.
He now spends significant amount of his time travelling internationally teaching the techniques that he has mastered over many years.

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Dr. Dorottya Frank
Specialist orthodontist with over 17 years of academic and clinical experience. Associate Professor at the University of Pécs, actively involved in undergraduate orthodontic education in Hungarian, English, and German. International lecturer in aligner orthodontics, with a strong focus on predictable treatment planning, interdisciplinary care, and early orthodontic intervention. President of the Hungarian Orthodontic Society since May 2025.

Dr. Saif Al-Zahrooni
Dr. Al-Zahrooni is a board-certified orthodontist with a strong focus on aligner orthodontics and digital treatment concepts. He has extensive clinical and leadership experience in both private practice and institutional settings in Austria.
Since 2017, he has been working as a self-employed orthodontist in private practice, specializing in aligner therapy and comprehensive orthodontic treatment. From 2016 to 2023, he served as Chief Orthodontist at ÖGK Niederösterreich (Austrian Health Insurance Fund), where he was responsible for clinical leadership and orthodontic services. Since 2023, he has been President of the Austrian Society for Aligner Orthodontics.
Dr. Al-Zahrooni obtained his Austrian Board Certification in Orthodontics in 2022. He holds a Doctor of Dental Medicine degree from the Medical University of Vienna (2015) and a Master of Science (MSc) in Orthodontics from Danube University (2014).

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Markus B. Hürzeler received his D.M.D. degree in 1984 from the University of Zürich. He was certified as a Periodontics Specialist by the Swiss Society of Periodontology in 1989 and as a Prosthodontics Specialist by the German Society of Prosthodontics in 1991. He spent two years at the University of the Houston, Texas, Dental Branch as a Visiting Associate Professor in the Department of Periodontology from 1991-1993. After returning to Freiburg, Germany, he obtained the Docent (PhD) degree from the Department of Prosthodontics at Albert-Ludwigs University in Freiburg, Germany in 1996. He then moved to Munich, where he has since operated a joint private practice together with Dr. Otto Zuhr, limiting his activity to periodontics and implant dentistry. In 2002, he was appointed Professor of Dentistry at the Department of Medicine of Albert-Ludwigs University in Freiburg, Germany. In 2008, he co-founded the Hürzeler/Zuhr Education Center together with Dr. Zuhr, where they teach the concepts and philosophy of state-of-the-art dentistry. Markus B. Hürzeler has been a Clinical Associate Professor at the University of Texas in Houston since 1993, and an Associate Professor at the Albert-Ludwigs University Department of Preventive Dentistry and Periodontology in Freiburg Germany since 1997.
Professor Hürzeler is the president of the European Academy of Esthetic Dentistry (EAED). He has produced more than 150 scientific publications in the field of implant dentistry, periodontology, and tissue regeneration. He regularly gives lectures and courses on topics related to periodontics and implant dentistry at national and international events. In 2012, Markus B. Hürzeler and Otto Zuhr published the world renowned book “Plastic-Esthetic Periodontal and Implant Surgery – A Microsurgical Approach”.