We help you design your smile
Book Your Free Consultation Today!
Book Your Free Consultation Today!
Welcome to

Washington Orthodontics provides personalized orthodontic care for children and adults in Bellevue, Federal Way, and Issaquah using braces and clear aligners. Led by Dr. Moon, we’ll help you design your smile.
See before and after treatment examples of the amazing difference in other patients who have trusted us!






Your consultation includes a free oral exam, a free Itero 3D Digital Scan, and a Free treatment Plan. Dr. Moon will create a personalized plan
Our experienced staff will work with you to find a payment option that best fits your needs, and we will also process orthodontic insurance benefit claims as a courtesy to make the process easier.
Congratulations! Your braces or aligners have been placed, and you’ll attend regular check-ups until your treatment is complete.
Dr. Thomas Moon combines advanced training with a warm, approachable style of care. Board-certified and educated at Ohio State University, he stays at the forefront of orthodontic techniques to deliver outstanding results. Fun fact about Dr. Moon is that his Wife Jane, is a dentist! His commitment to continuous improvement guides the “better than yesterday” philosophy at Washington Orthodontics.

At Washington Orthodontics, Dr. Thomas Moon and our team follow a simple philosophy of being better than yesterday. This approach guides us to provide personalized care at every stage of the orthodontic process.
At Washington Orthodontics, we simplify the insurance process by working with all dental plans and handling most claims in-office. Our team will explain how your benefits apply to your treatment and work with you to make care as affordable as possible. We’re here to make your smile journey easy and stress-free.
Our team believes in accessible dental care without complication. We offer straightforward pricing and clear estimates. Washington Orthodontics also provides interest-free payment plans, ask about your options or learn more under Insurance & Financing.

Choosing an orthodontist is an important decision that affects both your health and confidence. Washington Orthodontics stands out among Bellevue and Federal Way communities through personalized care, advanced technology, and a patient-first approach. Here are five compelling reasons to trust Dr. Thomas Moon and his team with your orthodontic journey.
Straightening teeth and correcting bite problems requires expertise and advanced technology. At Washington Orthodontics, we provide comprehensive orthodontic treatment for patients of all ages in Bellevue, Federal Way, and surrounding communities. Dr. Thomas Moon combines specialized training with cutting-edge 3D imaging technology to create personalized treatment plans that address your unique dental concerns. Whether you need traditional metal braces, clear ceramic options, or Invisalign clear aligners, our approach focuses on delivering beautiful, functional results.
Orthodontic care has evolved significantly from decades past. Digital scanning creates precise impressions, eliminating messy putty and offering a seamless start to your journey. Washington Orthodontics’ imaging technology provides a virtual preview of your expected results before beginning care. This innovative approach clarifies what to expect throughout the process.
Our commitment to innovation delivers:
Every smile presents different challenges, and our practice tackles various alignment problems effectively. Washington Orthodontics addresses crowded teeth, gaps between teeth, overbites, underbites, crossbites, and open bites using proven techniques. Duration typically ranges from 12 to 30 months depending on case complexity. Dr. Thomas Moon’s gentle, precise methods minimize discomfort while delivering optimal results that last a lifetime.
Our tailored approach handles:

Straightening teeth no longer means dealing with metal brackets and wires that interfere with daily activities. Clear aligners for kids and adults offer a discreet alternative that works seamlessly with busy schedules. These transparent trays gradually shift teeth into proper positions while remaining virtually invisible during wear. At Washington Orthodontics, we provide teens and adults with removable aligner systems that make maintaining oral hygiene simple and allow complete freedom during meals.
Traditional braces create challenges for active individuals who participate in sports, public speaking, or professional settings. Clear aligners solve these problems through their removable design. You can take them out for important events, meals, and brushing while maintaining progress. Duration varies based on case complexity and how consistently you wear your aligners.
Patients who value flexibility appreciate:
Modern orthodontics relies on accuracy to deliver exceptional results. Washington Orthodontics uses sophisticated imaging systems to design your aligner care. This approach creates accurate impressions while maintaining ease and efficiency. You’ll see a preview of your expected results before starting, giving you confidence in the process ahead.
The planning process provides:
Our patients from Bellevue, Federal Way, and surrounding communities appreciate how clear aligners fit naturally into their daily routines.

After months of orthodontic treatment, your teeth have reached their ideal positions. Retainers keep them there. These devices prevent unwanted tooth movement that naturally occurs throughout life. At Washington Orthodontics, we provide multiple retainer options to preserve the smile you worked hard to achieve.
Washington Orthodontics offers fixed and removable retainer types to match your lifestyle preferences. Fixed retainers consist of small, durable wires bonded to the back of your teeth, usually on the lower arch. They require no daily effort and stay in place for long-term stability. Clear removable retainers are thin, transparent aligners that fit snugly over your teeth and can be taken out for eating, drinking, and cleaning.
Each type provides specific advantages:
Removable versions can last five to ten years when properly cared for. Dr. Thomas Moon provides detailed instructions on proper maintenance and emphasizes that wearing schedules should typically continue indefinitely to protect your investment. Regular check-ups help determine when a replacement is needed, and proper handling can significantly extend lifespan.
Essential habits protect your device:
Regular visits to our Bellevue or Federal Way office help monitor both your teeth alignment and device condition, allowing us to make necessary adjustments to your wearing schedule.

Washington Orthodontics serves patients from three convenient locations. The Bellevue office is located at 4140 Factoria Blvd SE, Suite 1A, in the Factoria neighborhood, the Federal Way office is at 2315 SW 320th St and the Issaquah office is located at 22500 SE 64th Place, STE G110. Dr. Thomas Moon and his team actively serve patients throughout the Eastside region including Mercer Island, Redmond, Issaquah, and Sammamish, as well as Federal Way and South King County communities. These convenient locations make quality orthodontic care accessible to families across the region who want personalized treatment from a board-certified specialist.
Washington Orthodontics aims to maintain consistent hours. These focused operating days allow Dr. Thomas Moon to provide thorough, unhurried attention to each patient during their appointments. It’s recommended to schedule appointments in advance and arrive 10-15 minutes early for your first visit to complete any remaining paperwork.
Treatment duration varies based on individual case complexity and the type of orthodontic treatment chosen. Most cases range from 12 to 30 months, with traditional braces typically requiring 18-24 months. Clear aligners may offer shorter treatment times for less complex cases. During your consultation, Washington Orthodontics will assess your specific situation and provide a personalized timeline so you know exactly what to expect throughout your orthodontic journey.
Some initial soreness is normal when beginning orthodontic treatment or after adjustments, but modern techniques have significantly reduced treatment-related pain. Washington Orthodontics uses gentle, precise methods to minimize discomfort, and the team provides personalized tips and tools to manage any temporary soreness. Most patients find that any mild discomfort subsides within a few days as they adjust to their braces or aligners. The benefits of a healthy, beautiful smile far outweigh these brief periods of adjustment.
Most patients visit Washington Orthodontics every 6-8 weeks for check-ups and adjustments. The exact frequency depends on your specific treatment plan and progress. Patients using clear aligners may require less frequent in-office visits since they switch to new aligners at home every two weeks. Dr. Thomas Moon monitors progress carefully at each appointment and adjusts the treatment timeline as needed to ensure optimal results while respecting your busy schedule.