Dr. Walter obtained his medical degree in 1995 from the Universidad Autónoma de Bellaterra (UAB) and later earned his degree in Stomatology from the Universidad de Oviedo (UO) in 2000. Then he completed a Master's in Orthodontics (2003)at the Universitat Internacional de Catalunya (UIC), where he served as an associate professor until 2018. In 2013, he earned a PhD in Orthodontic Skeletal Expansion. He has been an associate professor since 2018 and now collaborates at UIC while maintaining a private practice in Barcelona. An active member of the Spanish Society of Orthodontics (SEDO) since 2003, Dr. Walter has authored around 40 national and international scientific publications, contributed to two book chapters, and participates in international patent collaborations, holding three national orthodontic patents. He also serves as a peer reviewer for leading journals like the European Journal of Orthodontics (EJO) and Progress in Orthodontics.