Dr. Frost, a St. Louis orthodontist, began his practice of orthodontics in 1989 with his father, the late Dr. W. Dale Frost. Since then, he has helped thousands of people of all ages permanently improve their smiles. Dr. R. Andrew (Andy) Frost received his undergraduate degree from Duke University in Durham, North Carolina. He attended dental school at Washington University School of Dental Medicine, earning a Doctor of Dental Medicine degree in 1987.