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About Lower Columbia Endodontics

Our Mission

At Lower Columbia Endodontics, we're dedicated to saving natural teeth through advanced endodontic care. Dr. Steidley combines cutting-edge technology with a gentle approach, ensuring every patient receives comfortable, expert treatment. We focus on both your physical and mental comfort throughout your visit, striving to exceed expectations in everything we do.

Why Choose Us?

Board Certified

Dr. Steidley achieved board certification that only 25% of endodontists obtain.

Advanced Tech

State-of-the-art CBCT imaging, dental microscopes, and precision instruments.

Patient Focus

We prioritize your comfort with amenities and personalized care approaches.

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Meet Dr. Steidley

Dr. Andrew R. Steidley is a board-certified endodontist who has dedicated his career to saving natural teeth through advanced endodontic treatment. Following in his father's footsteps, who practiced dentistry in Longview for many years, Dr. Steidley returned to serve the community where he grew up. He earned his DMD and completed an additional two years of specialized endodontic residency, followed by rigorous board certification that only 25% of endodontists achieve. Dr. Steidley stays current with 40 continuing education credits annually, all focused on the latest endodontic techniques and technologies. Outside the office, he enjoys outdoor activities, music, and spending time with family and their dogs. Patients might be surprised to learn he once played drums in a metal band during high school!

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Our Practice

Lower Columbia Endodontics opened in 2025 with a mission to provide exceptional endodontic care to the Longview community. Located conveniently near the post office on Hudson Street, we've invested in the most advanced endodontic technology available. Our practice focuses exclusively on endodontic treatment, allowing us to perfect our craft and provide the highest level of specialized care. We believe in treating the whole person, not just the tooth, which is why we prioritize both your physical comfort and emotional well-being during every visit.

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Our Technology

We use the latest endodontic technology to ensure precise, comfortable treatment. Our CBCT imaging provides detailed 3D views for accurate diagnosis and treatment planning. Dental operating microscopes allow for precision work at the highest level. Electronic apex locators and advanced file systems ensure optimal outcomes. This technology allows us to provide minimally invasive treatment with predictable, successful results.

Experience Expert Endodontic Care

Ready to save your natural tooth with comfortable, advanced care? Contact Lower Columbia Endodontics today to schedule your consultation with Dr. Steidley.

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