Meet Dr. O’Banion

Endodontist in Dublin

Mark A. O’Banion, D.M.D.
Diplomate of the American Board of Endodontics

Dublin OH Endodontist Dr. Mark O'BanionDr. Mark O’Banion graduated Summa Cum Laude from Southern Illinois School of Dental Medicine in 1998 where he was valedictorian. He received several awards including Student Alpha Omega International Dental Fraternity  Award for graduating with highest class rank, Omicron Kappa Upsilon Award 4 consecutive years, Periodontal Surgery Award, ICOI Pre-Doctoral Implant achievEment award, Phi Kappa Phi Honor Society Award, Paul W. Clopper Memorial Foundation and Illinois Hospital Scholarship awards.

Dr O’Banion received a General Practice Residency Certificate from the Cleveland Clinic in Cleveland, Ohio in 1999. He then received his Endodontic Certificate from the University of Illinois at Chicago in 2001. He has been a member of the American Association of Endodontics, Illinois Endodontic Association,  Edgar D. Coolidge Endodontic Study Club, and has been a tutor for clinical and didactic dental courses.

Dr. O’Banion feels it is important to attend more than the required continuing education courses annually, to continually learn, and to be the best endodontist that he can be. He strives to learn the newest techniques and aims for excellence and perfection.

He enjoys spending time with his beautiful wife and three children. They enjoy watching their children in swim meets and school events. Dr. O’Banion also enjoys bicycle racing, cycling, running, skiing, drawing, painting, travelling, and playing chess.

Patient Reviews

Patient Review by Dana W

Great Doctor and staff.

- Dana W

5 out of 5 stars on

Patient Review by James N

Very first dentist visit with absolutely no pain

- James N

5 out of 5 stars on

Patient Review by Sherri H

The office staff and Dr. OBanion are top notch and extremely professional! I would highly recommend them to anyone!!!!

- Sherri H

5 out of 5 stars on

Patient Review by Barry W


- Barry W

5 out of 5 stars on

Patient Review by James S

Doctor and staff excellent...Thank you so much

- James S

5 out of 5 stars on

Patient Review by Laura B

Quick service

- Laura B

5 out of 5 stars on

Patient Review by S R

Excellent care.

- S R

5 out of 5 stars on

Ready to Improve Your Smile?

Call us with any questions or to make an appointment.

Dublin: 614-659-7491 Lexington: 419-884-7807 Appointments Map & Driving Directions

What is an endodontist?

An endodontist is a dentist who specializes in treatment to help save teeth. An endodontist  specializes in problems with the inside of the tooth: the pulp, which is made up of nerves, blood vessels, and other soft tissues. One of the most common procedures these dental professionals perform is a root canal, which involves removing the infected pulp from a tooth and sealing it up. Other procedures may include re-treatment, regeneration, or surgical procedures to save teeth.

What is a Diplomate?

A Diplomate is one of a small percent of endodontists that has been certified by the American Board of Endodontics and has become board certified in his field. To become a diplomate or board certified, one must successfully complete postdoctoral study in an ADA approved specialty program. Next, your endodontist must pass three examinations, first, a one-day written exam testing a broad range of fields including: anatomy, biochemistry, pathology, immunology, microbiology, pharmacology, radiology, statistics, clinical endodontics and related disciplines. Your endodontist then submitted documentation of a variety of cases from his own practice. These were diverse and complex cases, to demonstrate exceptional knowledge, skills and expertise in the field of endodontics. After completing these, the final phase of Board Certification is an oral exam, where a panel of experts questioned your endodontist about a variety of treatment and difficult diagnosis situations. Throughout this process your endodontist demonstrated a high level of skill in problem solving, decision making, analysis, and evaluation.