Our Expertise

We value the trust that you place in our practice. Whether you
are a patient or referring dentist, you’ll find that our specialty is conscientious, expert care.

Root canal

Careful removal of damaged pulp to save infected tooth.


Treatment of teeth that have not healed as expected after root canal.

Endodontic surgery

Surgical removal of infected area when root canal alone is not enough.

Injury treatment

Treatment for cracked teeth and traumatic dental injuries.

Our Team

With 25 years of specialized experience,
we provide expert care with a welcoming, personal touch.

Andrew J. HaaseDDS, MS

A native of Columbus Ohio, Dr Haase received his DDS degree from The Ohio State University College of Dentistry. Upon graduaton, he practiced general dentistry for three years and also taught at the College. Dr Haase earned his Master of Science and Endodontic Certificate from the Department of Graduate Endodontics. His research was published in the Journal of Endodontics. He is a member of the American Dental Association, Ohio Dental Association, Columbus Dental Society, American Association of Endodontists and the Ohio Association of Endodontists. Dr Haase enjoys helping his patients and the challenge of his profession. He also enjoys all sports especially golf and spending time with his family.

AwardsEndodontic Instructor of the Year 2004

Mark L. OlesonDDS, MS

Dr. Oleson completed his DDS, MS and endodontic residency program at The Ohio State University College of Dentistry. His research on local anesthesia and pain control was published in the Journal of Endodontics. He is a member of the American Dental Association, Ohio Dental Association, Columbus Dental Society, American Association of Endodontists and Ohio Association of Endodontists. Dr. Oleson values helping patients comfortably alleviate pain while allowing them to keep their natural teeth. As an avid climber, he’s climbed everywhere from the US to the Himalayas, enjoys nearly all outdoor activities, as well as playing with his young kids and spending time with his wife.

AwardsAAID Outstanding Achievement Award; Academy of Operative Dentistry Outstanding Achievement Award

Our dental assistants and front office teams deliver
the highest quality care and service.

  • petie_bio

    Petie Haase

    Office Manager

    She has her B.S. from The Ohio State University College of Nursing and is a licensed R.N. in the state of Ohio. She enjoys spending time with her family, golf, gardening and cooking.
  • cher_bio

    Cheryl Frazier

    Dental Assistant

    Cheryl has been a dental assistant on the team since 1976 and maintains her radiographic license. She makes sure the doctors and patients have what they need before, during and after treatment. Cheryl lovingly maintains the hummingbird feeder outside of the office. She also enjoys gardening and her two dogs and three cats.
  • Kelsey Maitlen

    Dental Assistant

    Kelsey is a licensed dental assistant. She enjoys her job and takes pride in the performance of her responsibilities as a team member. Her cheerful positive demeanor is appreciated by patients and staff alike. Kelsey enjoys spending time with her family and friends. She loves the outdoors including fishing. She also enjoys going to concerts and traveling.
  • karen_bio

    Karen Scholz


    Karen is the warm, smiling voice that will greet you on the phone or meet you at our front desk. She has more than 34 years experience. She schedules appointments while maintaining accurate documention. Karen enjoys gardening, scrapbooking and caring for her granddaughter.
  • maria_bio

    Maria Frank

    Front Desk Receptionist & Dental Assistant

    Maria has her Dental Assistant Diploma as well as all the required certifications. She also works in the business and reception areas. She enjoys spending time with her husband and nieces, as well as kickboxing, camping and hosting dinner parties.

We make a point of being available to provide information about your endodontic care.

Get in Touch

What to Expect

Our endodontists are highly skilled and specially trained,
resulting in a procedure that is comfortable, efficient and highly effective.

For additional information about endodontic procedures,
visit the American Association of Endodontists patient resource area.

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Whether you’re preparing for your visit or need to schedule one,
you’ll find what you need here.

We value your feedback.
Let us know your experience.

Ensuring a precise, painless experience

We specialize in endodontic care so that you don’t have to. Our specialists know how to properly care for your referrals, but we also know how to manage interaction with dental offices seamlessly, creating the best possible experience for our patients.

Consider our relations a partnership, from first referral to post-procedure follow up.

We make referrals easy

Get started by completing our referral form below
or call (614) 459-2234.

This form is currently disabled, please use the printable PDF form to refer a patient.

Get In Touch

Find Us

4830 Knightsbridge Blvd. Suite L., Columbus, OH 43214


Mon | Fri 8:00am – 4:30pm


(614) 459-2234 (614) 451-4388