St. Louis Premier Endodontist providing relief to stop pain and save your tooth.

Our team here at Gateway Endodontics provide relief all while in a comfortable, state-of-the-art office. The first step to healing is just scheduling a visit so that our compassionate team of dental professionals can help with your root canal therapy and endodontic procedures.

Root Canal Therapy

Root Canal Therapy

A painless procedure that removes tissue from the tooth allowing it to heal.

Endodontic Retreatment

Endodontic Retreatment

In cases that a root canal doesn't work, a retreatment may be needed to solve the issue.

Endodontic Surgery

Endodontic Surgery

If a root canal won't fix the problem, endodontic surgery may be the necessary procedure.

Cracked Tooth

Cracked Tooth

A crack in your teeth that can keep you completely down. From throbbing to constant pain, we can help fix that.

Trauma

Trauma

Any issues with your teeth, especially infections, can lead to more problems. If more exists, it's needed to seek treatment.

Nitrous Oxide

Nitrous Oxide

An advanced sedation method to help with pain and nerves. It can make some people tired but wears off quickly.

About Us

St. Louis Endodontist - Care Your Can Trust

Most of the patients we see have been putting off their care for much too long, mostly because they find the idea of a root canal frightening. People hear surgery and immediately think of longer term care and pain.

The team at Gateway Endodontics are experts in the field with a passion that drives their experience. At Gateway Endodontics, our why isn’t to take care of teeth, it’s to make our patients’ lives easier and better. Led by Dr. Richard Orrick, we perform root canals and a mixture of procedures related to them.

Complete Care

We provide full 360º care for root canals and related procedures.

Affordable Pricing

We work with major insurance companies to provide affordable pricing and quality service.

Why choose Gateway Endodontics?

Most endodontic companies will tell you why, we want to tell you our why… We believe that people should live the most comfortable lives possible. When tooth pain kicks in, it distracts you from everything you have to do, which is why we do what we do.

Complete Care

With state-of-the-art technology we believe that every patient should feel as comfortable as possible and deserve the best equipment available.

Centrally Located

With our office at the corner of 64/40 and 141, we're 20 minutes from any part of the county in St. Louis and St. Charles County.

Affordability

No matter what the issue, we diagnose and ensure that you understand pricing before any procedures is done including insurance pricing.

Testimonial

What Patients Say

  • Doctor Orrick was most pleasant and professional throughout the whole process of my root canal. He explained the procedure carefully and I felt at ease with him. I definitely recommend him to anyone who needs to have this done. He’s very gentle and understanding.

    Terry Adam Avatar Terry Adam
    February 6, 2025
  • Damn, this guy is good. I'd give 6 stars if I could. I'm not good at the dentist and Dr. Orrick took care of me. I'll never be worried about a root canal again. Thank you!!!

    Mike Smith Avatar Mike Smith
    March 13, 2024
  • I’m 29 years old and have always been terrified of the dentist. Novocaine shots in particular have always been my biggest fear. I went to Dr. Orrick for 2 root canals and had a great experience.. he really knows what he’s doing! Dr. Orrick and his assistant Sarah are a wonderful team, and they both have fantastic bedside manner. Also, today was the first time I’ve received a Novocaine injection and by some miracle felt NO PAIN. This experience changed my life..which sounds dramatic, but it’s true. Thank you so much!

    Alex Leisure Avatar Alex Leisure
    November 28, 2024
  • The office is great. Dr. Orrick is amazing. He has done a few procedures for me and every experience was great. They are compassionate and caring. I really liked how he explains what he's doing and how it will feel before he does the next step. They really care about my comfort as a patient, too. I would highly recommend using Gateway Endodontics for any procedure you need.

    Tricia B (Trish B) Avatar Tricia B (Trish B)
    May 15, 2025
  • The best dentist I have used. His staff is welcoming and puts you at ease. They take the time to let you know what needs to be done and will answer any questions with accuracy and patience. Would definitely go to him again if needed.

    Nicholas Pratt Avatar Nicholas Pratt
    June 18, 2024
  • I agree with other great reviews. I was able to get an appointment to evaluate 3 teeth quickly. Dr. Orrick explained everything and recommended a treatment plan. There was no pressure to get unnecessary and expensive treatment. His office staff worked with my insurance to get the most of it.

    Aleksey Pelekh Avatar Aleksey Pelekh
    December 28, 2024
  • Dr. Orrick does excellent work. He takes the time to explain each process and during the procedure he was gentle and made sure I was comfortable at all times.

    Jayce Kolb Avatar Jayce Kolb
    June 18, 2024
  • I am so shocked at how easy the root canal with Dr. Orrick was. I never had a root canal before, and I'm 40. He has his technique and art down - does it quick, gets you out quick, the process is mostly painless, even the recovery was painless for me. His anesthesia administration was also on point - he got it right the first time. Anytime I've had to get local anesthesia for anything anywhere else, the healthcare provider would have to try several times before I was numb. He was also super transparent about the process; there's a TV screen in front of you where he projects your x-rays and he explains the issue and what he's going to do to treat it. It's nice to know what's happening. As someone who always wants to know "why," I really liked that. Also, the woman at the desk is phenomenal (she's the same one who answers the phones). Her customer service skills, sharpness, and overall clarity and helpfulness is remarkable. She remembers details about you that surprised me (like which medications I'm allergic to, the fact I called her earlier in the week and she kept me in mind - and was able to get me in earlier two days later).

    BT A Avatar BT A
    November 11, 2024
  • I can’t say enough good things about this office. From the first phone call to make an appointment to my final visit I was treated very well by all the staff. I would definitely recommend them.

    Bridget Jones Avatar Bridget Jones
    January 13, 2025
  • This was the easiest, most painless dental experience I have ever had. The lady at the front desk is THE NICEST and so helpful! This was my first root canal and I was terrified & Dr. Orrick & his assistant made me feel at ease and the whole process was quick and painless!

    Concetta Arcobasso Avatar Concetta Arcobasso
    October 7, 2024

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