Finding dependable, high-quality orthodontic care close to home shouldn’t be a challenge. Our orthodontic practice near Greenland, NH offers patients the advantage of expert-led care in a serene, family-focused setting. Dr. John Walsh brings years of advanced training to every treatment, including complex aligner cases and surgical coordination, ensuring precision and outstanding outcomes.
We create a tailored plan that aligns with your lifestyle, goals, and comfort preferences. Whether that means sleek Invisalign aligners or traditional braces, we’ve got you covered. And with flexible scheduling, free consultations, and a tranquil space designed to reduce anxiety, we make it easier than ever to start your smile transformation journey.
At Great Bay Orthodontics, you're more than a patient. You’re part of a community. Dr. Walsh and our caring team believe in building long-lasting relationships that extend beyond the treatment chair. We take the time to understand your needs and offer honest, clear communication throughout every step.
Our calm, nature-inspired office in Stratham reflects the tranquil beauty of coastal New Hampshire, making each appointment a peaceful experience. We’re especially proud of our expertise in clear aligner therapy and complex interdisciplinary cases, offering solutions for individuals with even the most challenging orthodontic needs. With us, your path to a confident smile is supported every step of the way.

We offer a full range of orthodontic solutions tailored to meet your needs at every stage of life. Whether you're looking for discreet options like Invisalign, need traditional braces for comprehensive correction, or are planning a first orthodontic visit for your child, we’re here to guide you with expert care and warm, friendly service. Explore our services below:
Enjoy the freedom of a beautifully aligned smile without brackets or wires. Invisalign uses a series of custom clear aligners to straighten your teeth with comfort and convenience. Designed for teens and adults, Invisalign fits seamlessly into your lifestyle. Dr. Walsh has the expertise to treat even complex aligner cases with predictable, stunning results.
Modern braces are more efficient and comfortable than ever before. At Great Bay Orthodontics, we provide both metal and ceramic braces designed to meet a variety of orthodontic needs. These range from mild crowding to more involved corrections. Dr. Walsh ensures that each treatment plan is customized to achieve long-lasting, life-enhancing results.

Early orthodontic screening plays a vital role in identifying issues before they become more severe. We recommend children have their first orthodontic evaluation by age 7. Dr. Walsh uses a gentle, informed approach to monitor growth and intervene only when needed, helping your child enjoy a healthier, more balanced smile for life.

Accidents and discomfort can happen during orthodontic treatment. We’re here to help with any urgent needs. Whether it’s a broken bracket, misplaced aligner, or significant discomfort, Dr. Walsh provides prompt support and guidance so you can get relief quickly and continue your treatment without disruption.
Reveal the full potential of your smile with professional teeth whitening. Whether you're wrapping up braces or finishing up with Invisalign treatment, we offer safe, effective options for a dazzling finish. Our whitening methods are selected to protect your enamel and provide lasting brightness with minimal sensitivity.
There’s never been a better time to start your orthodontic journey. Great Bay Orthodontics always offers complimentary in-person or virtual consultations to help you explore your options with Dr. Walsh, no strings attached. Whether you're ready to begin with Invisalign or weighing the benefits of braces, this offer makes expert care more accessible than ever.
We offer fast and flexible scheduling options so you can begin your smile journey right away. After a free in-person or virtual consultation with Dr. Walsh, we’ll develop your custom treatment plan. Most patients in the Greenland area are able to start Invisalign or braces within a couple of weeks of their initial visit.
The American Association of Orthodontists recommends that children receive their first orthodontic evaluation by age 7. At Great Bay Orthodontics, Dr. Walsh provides calm, pressure-free screenings to monitor dental development and determine whether early intervention may be beneficial.
If you're experiencing an emergency such as a broken bracket, poking wire, or lost aligner, call us at (603) 944-9360. We offer same-day or next-day appointments and clear instructions to keep you comfortable until you can be seen. Your comfort and care are always our top priorities.
You cannot get teeth whitening while wearing braces, but you can whiten your teeth after your braces are removed. Similarly, we also recommend waiting to whiten your teeth until after you complete your Invisalign treatment. This helps prevent sensitivity, treatment delays, and other complications.
Absolutely! Invisalign is an excellent solution for both teens and adults. Dr. Walsh has advanced experience with clear aligners and can guide you through a successful Invisalign treatment tailored to your unique age, lifestyle, and needs. All of this is available right here near Greenland, NH.