Meet Dr. O’Banion

Endodontist in Dublin

Diplomate of the American Board of Endodontics

Dublin OH Endodontist Dr. Mark O'BanionDr. Mark O’Banion graduated Summa Cum Laude from the 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 the 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, Ohio Endodontic Association, Edgar D. Coolidge Endodontic Study Club, Seattle Study Club, Sfumato 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. Thus, it is important that he maintains his board certification in the field of endodontics.

He enjoys spending time with his three children, exploring new restaurants, and cheering on the Buckeyes football team.

Dr. O’Banion also enjoys bicycle racing, cycling, running, skiing, kickboxing, drawing, painting, traveling, and playing chess.

Patient Links of Interest

Patient Reviews


Patient Review by Leslie H

The office atmosphere does not feel like your standard dental office. The staff is very welcoming and helpful with any question I may have had. Dr. Mark made my first root canal as pleasant as one could possibly be. His assistance have all been very welcoming and treated me like I was family. Thank you so much!

- Leslie H

5 out of 5 stars on

Patient Review by Dr. Andrew G

As a referring dentist to Dr. O'banion over the last several years I recently found myself in his chair as a patient. (I needed a root canal on a lower molar due to a cracked tooth). My experience was personable, professional and painless. I will continue to refer my patients and friends to Dr. O'banion now more confidently than ever! Dr. Andrew Gast

- Dr. Andrew G

5 out of 5 stars on

Patient Review by Nancy H

The staff was great, made my visit a much better experience. I would most diffidently recommend this office.

- Nancy H

5 out of 5 stars on

Patient Review by Michelle D

Very pleasant people and felt comfortable

- Michelle D

5 out of 5 stars on

Patient Review by Scott B

First time having a procedure without having pain

- Scott B

5 out of 5 stars on

Patient Review by Charlotte J

Great job, so very gentle

- Charlotte J

5 out of 5 stars on

Patient Review by Lori R

Great dentist and staff

- Lori R

5 out of 5 stars on

Put Your Trust in an Endodontic Expert


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.