Javascript is not enabled on this browser. This site will not function properly if Javascript is not enabled.

7800 N Mopac Expy 250 Austin TX 78759 / 1830 Round Rock Ave 100 Round Rock TX 78681


Dr. Stephen H. Simon, Dr. Marc Rasmussen, Dr. Joanna Davis

Our Mission

Welcome to ATX Endodontics

Our mission is to provide unsurpassed quality of professionalism and clinical excellence in a gentle and friendly environment. By referring you to our office, your dentist has shown their concern that you receive the finest endodontic care possible. Our goal is to work closely with your referring practitioner to facilitate your endodontic needs as part of your complete treatment plan. We hope to exceed your expectations.

Practice Profile

Our respected endodontic specialists are: Dr. Stephen H. Simon, Dr. Marc Rasmussen, Dr. Joanna Davis. Together they lead our expert team utilizing state-of-the-art technology such as 3-D digital imaging, surgical microscopes, and ultrasonic instrumentation while performing root canal treatments.

AAE Patient Education Videos Explain Procedures, Expertise of Endodontists

Click on the youtube link to watch high-quality 3-D animated videos that explain what happens during root canal treatment, retreament and surgery, as well as the diagnosis and treatment of cracked teeth.