Dr. Rosenthall is a native of east central Indiana, growing up in Summitville. Dr. Rosenthall was a member of the basketball and tennis teams while attending Franklin College, where he graduated summa cum laude with a Bachelor of Arts degree in science. He then completed dental school at Indiana University, where he was vice president of his class and nominated into Omicron Kappa Upsilon, dentistrys National Honor Society. Dr. Rosenthall practiced general dentistry and was active in orthodontic research for one year before returning to Indiana University to complete his specialty training in orthodontics and his Masters Degree in dentistry.
Dr. Rosenthall has published articles on dentistry and dental anomalies and has conducted dental and orthodontic research. He is also involved in product development for the worlds largest orthodontic manufacturer.