The Care You Need, From the Expert You Trust
Advanced Care Dentistry is more than just a name. It is a promise. Dr. Thomas O. Marxen and Dr. Hwang have built a practice in Woodinville where medical-grade precision meets genuine compassion. We bridge the gap between your oral health and your overall well-being so you can stop worrying about your teeth and start living your life.
Meet the Architect of Your New Smile

Dr. Thomas O. Marxen, DDS, MSD
Most dental issues require you to see a general dentist for your tooth and a specialist for your gums. Dr. Marxen creates a different experience where Advanced Care Dentistry is your go-to for both.
As a specialist in both Periodontics (the foundation) and Prosthodontics (the restoration), Dr. Marxen understands the complete engineering of your mouth. He doesn't just fix a tooth, he ensures the biological foundation is healthy enough to support it for the long term. This means you get a comprehensive plan from a single expert who sees the entire picture.

Dr. Sean Hwang, DDS, MS
Dr. Sean Hwang, is an integral part of the Advanced Care Dentistry team, sharing the practice's commitment to excellence and patient-centered care. Dr. Hwang's expertise complements the comprehensive services offered, further strengthening the practice's ability to provide a wide range of advanced dental solutions. His dedication ensures that patients receive the highest level of comfort and quality throughout their dental journey.
A Rare Combination of Skills
Health, stability, and strength is the sum of its parts. Dr. Marxen is one of the few dentists qualified to handle both the biology of your gums and the artistry of your teeth. This dual expertise allows him to solve complex problems others might miss, ensuring your results are built to last a lifetime.
Dr. Marxen is a specialized dental professional with advanced training in both Prosthodontics and Periodontics. This dual expertise allows the practice to handle complex dental problems, including full-mouth reconstructions and necessary implants. The practice carefully evaluates new treatments and technologies, prioritizing innovations that enhance patient outcomes. A commitment to continuing education is pivotal for staying updated with the latest advancements, ensuring the highest standards of care and professionalism.
Safety and Precision in Every Visit
We know fear often stands in the way of health, which is why we aim to break the wall between medicine and dentistry. From advanced technology to IV sedation, your comfort and peace of mind are part of the plan, not the afterthought. Receive the care you need while feeling completely relaxed and safe.
Dr. Thomas Marxen’s journey into dentistry began with a desire to create positive change in people’s lives through the science of healing. At Advanced Care Dentistry, we integrate state-of-the-art technology with personalized care to provide a comprehensive and patient-focused approach. Dr. Marxen’s background as a phlebotomist greatly influences his approach, emphasizing patient comfort and precision, especially when administering IV sedation. This foundation ensures a smooth and pleasant experience, making IV sedation a “game changer” for our patients. Our commitment to clear communication, rooted in the skills Dr. Marxen considered using in a teaching career, is crucial to ensuring patients feel understood and informed throughout their care.
A Higher Standard for Your Dental Care
We are one of the few practices licensed to offer IV conscious sedation, but our approach to comfort goes deeper. Because Dr. Marxen understands the delicate link between medicine and dentistry, our sedation protocols are designed for your complete physical safety and peace of mind. Whether you need extensive restoration or routine care, you can rest easy knowing you are in the hands of a team that prioritizes your comfort just as much as your results.

