Thomas Zumstein competed his Doctoral degree in dental medicine, Zurich (Switzerland) in 1981. From 1981 until 1983 he was Assistant at the Department of Cranio-Mandibular Dysfunctions and Complete Prosthodontics, University of Zurich working with Prof. Dr. S.Palla. In 1984 - 1985 he was Assistant at the Department of Oral Surgery, University of Zurich with Prof. Dr. H. Obwegeser and Dr. E. Schmid. In 1985 until 1987 Thomas had a Private practice in Winterthur (Switzerland) with a focus on prophylaxis and periodontology with Dres H. Ochsenbein and B. Lüscher. In 1987 he opened he has been in his own practice with a focus on dental implantology and prosthodontics where he still practices today. He received his Specialisation in Oral surgery in 2002 and from 2003- 2005 was an Instructor at the Department of Cranio-mandibular Dysfunctions and Complete Prosthodontics, University of Zurich. In 2011 he received his Certificate SSO of continuing education in oral implantology. He is a past president and an active member of numerous societies including the Swiss paradontology, the Swiss reconstructive society, Swiss Implantology Association and the Swiss Oral Surgery and Stomatology society.