Dr. Tomassetti completed his pre-dental requirements, with a major in biology, at Juniata College in Huntingdon, Pennsylvania. He attended the University of Pittsburgh School of Dental Medicine, where he earned his Doctorate of Medical Dentistry in 1993. As a senior student, he was awarded the Academy of General Dentistry Award for proficiency in all areas of dentistry.
Dr. Tomassetti served 11 years on active duty in the U.S. Army. The first year, he underwent an advanced education in general dentistry (AEGD) course at Fort Campbell, Kentucky, during which he trained in all facets of dentistry, including orthodontics and oral surgery. He spent the next five years as a general dentist, including a stint as the officer-in-charge of the NATO Dental Clinic in Brussels, Belgium.
Dr. Tomassetti is a Diplomate of the American Board of Orthodontics and a member of the College of Diplomates of the American Board of Orthodontics, the American Association of Orthodontists, the Wisconsin Society of Orthodontists, the Midwestern Society of Orthodontists, and the American and Wisconsin Dental Associations. He currently serves as the president-elect of the Outagamie County Dental Society.