About Dr. Arnold

Thomas G. Arnold, D.D.S., M.S.

Dr. Tom Arnold was born and raised in Cold Spring, MN. He graduated Summa Cum Laude from the University of St. Thomas in 1983 with a B.A. in Biology. He then obtained his Doctor of Dental Surgery degree from the University of Minnesota in 1987. He received his M.S. degree and completed his orthodontic residency at the University of Minnesota in 1989. 

Professional Affiliations

  • American Dental Association
  • Minnesota Dental Association
  • American Association of Orthodontists
  • St. Paul District Dental Society


A life-long learner, Dr. Arnold continues his education through both continuing education courses, and memberships in professional organizations. He is a member of the American Association of Orthodontists, the American Dental Association, the Minnesota Dental Association, and the St. Paul District Dental Society.

Dr. Arnold and his wife, Dana, enjoy spending time with their three children, Patrick, Margaret and Matthew.