2844 US Highway 34
Oswego, IL 60543-8346

Meet Dr. Thomas

Robert L. Thomas, DDS, MS

I find being an orthodontist to be a humbling experience, as people put great trust in me to do my best for themselves and their children. Every smile I help to perfect, every person no longer afraid to smile in public because of their teeth, makes me feel what I am doing is worthwhile. Being able to take someone who is afraid to smile, who is perceived by others as shy because they are afraid to show their teeth, and seeing a transformation in their personality and attitude towards life is perhaps the most rewarding aspect of practicing orthodontics.
I knew from an early age that I wanted to spend my life working with people and helping them directly. My father was an orthodontist, and while I was free to choose my own path in life, I was drawn into the fulfilling world of orthodontics by seeing the joy it brought my father.

Education and Continuing Education

  • Bachelor of Science, Biology – University of Illinois at Urbana-Champaign
  • Graduate Studies – Southern Illinois University and Benedictine University
  • Doctorate of Dental Surgery – University of Illinois College of Dentistry, Chicago
  • Master of Science, Oral Biology – University of Illinois College of Dentistry, Chicago
  • Orthodontic Specialty Certificate – University of Illinois College of Dentistry, Chicago

I’ve never stopped advancing my education in orthodontics and consider myself to be a lifelong learner. I regularly attend continuing education courses in order to stay on the cutting-edge of current technology to benefit my patients, both in providing a more comfortable experience as well as amazing results.

Professional Memberships

  • American Association of Orthodontists
  • Midwest Society of Orthodontists
  • Illinois Society of Orthodontists
  • American Dental Association
  • Illinois State Dental Society
  • Chicago Dental Society

Outside the Office

I am happily married with two wonderful children. When I’m not spending time with my family, I enjoy sponsoring several local youth sports teams and community 5k and 10k races throughout the year.



american association of orthodontists

American Association of Orthodontists®


On this site, you can learn about orthodontic specialists in the diagnosis, prevention and treatment of dental and facial irregularities. The correction of tooth and jaw alignment results in a healthy, attractive smile that’s good for life.

american dental association

American Dental Association®

Founded in 1859, the American Dental Association is the oldest and largest national dental society in the world. Since then, the ADA has grown to become the leading source of oral health related information for dentists and their patients. Learn more about the ADA’s mission and vision, and our commitment to the public’s oral health, ethics, science and professional advancement and access to care for all Americans.


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