Dr. Jansen completed his D.D.S. Degree as well as a Certificate in Advanced Education in Prosthodonticsat the University of Southern California, School of Dentistry. In 1989 he accepted a full-time teaching position at the University of Southern California, School of Dentistry. He was later appointed as Director of Implant Dentistry in the Department of Restorative Dentistry. Dr. Jansen then moved to Florida where he practiced and worked with an implant manufacturer.

Dr. Jansen has presented lectures on various subjects emphasizing Restorative, Esthetic and Implant dentistry to groups of specialists, dental associations and study clubs. He has lectured through out the United States as well as Asia, Australia, Europe and South America. Currently, Dr. Jansen has a full time practice and dental laboratory in Monterey, California. He is an expert in the field of implant dentistry. He holds several patents for implant components. Some are used throughout the world.