Dr. Giuseppe Scuzzo has spoken and published extensively on lingual orthodontics and invisible treatment publishing 80 articles and 3 books on lingual orthodontics translated in 6 languages. Dr Scuzzo is an EBO diplomate; the only one in Europe with all lingual cases.

Dr. Jhonny León Valencia is a professor of orthodontics at the University of Murcia (Spain and the Netherlands). In addition, Dr. Valencia is a licensed Dental Surgeon, an orthodontist exclusive practitioner since 2009 and an International speaker since 2015.

Dr. Joanna Mrowiec, MD, PhD, has been a certified orthodontic specialist since 1996 and is one of the most experienced clear-aligner practitioners in Poland, treating patients with these systems since 2003. She is the founder of the Astermed Orthodontic and Implantology Center and an expert in interdisciplinary care, with a particular focus on temporomandibular joint (TMJ) disorders. She is also a lecturer at the University of Warsaw and the author of widely cited publications in orthodontics.

Since 2001, Dr. Schwarze has treated more than 3000 patients with aligners in his two private practices in Cologne. Dr. Schwarze is also running an independent specialist orthodontic laboratory (KFO24 GmbH) and founded the Aligner Academy in 2017.

Dr. Lutz Hodecker is head of the Department for Children & Adolescents at the Eltz Institute for Orthodontics and an external research collaborator at Heidelberg University Hospital. He completed his orthodontic specialist training under Prof. Lux at Heidelberg, where he also served as senior physician for complex cases. He is the developer of innovative orthodontic CAD-CAM appliances such as the Mira appliance and is widely recognized through international publications and lectures.

Dr. Vilarrasa holds multiple master's degrees and as a certified provider of Angel Aligner, she has extensive experience utilizing Phase I with Angel KiD, focusing on early intervention strategies to optimize dental development in young patients.

Dr. Pedro Costa Monteiro embarked on his dental career by earning a DDS degree from Faculdade de Medicina Dentária do Porto, followed by specialized training in orthodontics at ISCS-Norte, Porto University, from which he also graduated for a Masters of Science in Orthodontic Specialty.

Dr. Philippe Van Steenberghe specialized in orthodontics at the Université Libre de Bruxelles (ULB), headed the orthodontics department at CHU Saint-Pierre in Brussels for 28 years and has treated over 5,000 patients using digital orthodontics.

Dr. Vignolo is a pioneer in early treatment and the use of aligners in children and adolescents. She regularly shares her knowledge and experience through courses and congresses worldwide and is an active member of SEDO, EAS, and EOS.

Dr. Sabine Severin graduated from the Faculty of Dental Surgery in Reims in 1990, docteur Séverin is a Qualified Specialist in Orthodontics (ODF) and holds several university diplomas, including a DIU in SAOS treatment and a DIU in applied dentomaxillofacial orthopedics.

Dr. Skander Ellouze, a Key Opinion Leader for Angel, is internationally recognized for his expertise in integrating clear aligners into his orthodontic cases, including surgical and interdisciplinary treatments.

Dr. Sophie Filipitsch graduated from MedUni Vienna (Vienna Dental Clinic, 2014–2021) and earned her Master of Science in Orthodontics from the Danube Private University in Krems. Since 2021 she has been part of the Zahnregulierung Votiv team led by DDr. Baerbl Reistenhofer, and is recognized for her lectures developed in close collaboration with her.

A sought-after international speaker and Key Opinion Leader (KOL) in aligner-based therapies, Dr. Stefano Marini brings extensive expertise with over 1,200 cases. He also serves as a faculty member and lecturer in master’s programs at Tor Vergata University and Unicamillus University in Rome.

Dr. Palma is a pioneer in Spain with the invisible orthodontic technique with aligners. She belongs to the first class of certified doctors in Spain in 2001. In 2015, she was awarded the first international prize for her excellent results and biomechanical management in the orthodontic technique with aligners.

Since completing her orthodontic degree at the University of Ferrara, Italy, in 2011, Dr. Wierusz-Hajdacka has consistently integrated the latest technologies into her practice which is recognized as one of the most advanced in Poland.