119 Massachusetts Ave. Lunenburg, MA 01462
Pond Road, Harvard, MA 01451

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Welcome to Walker Orthodontics, PC

Dr. John Walker is an experienced and respected Invisalign orthodontist in Lunenburg & Harvard, Massachusetts. The top priority of our practice is to provide you with the highest quality orthodontic care, in a friendly, relaxed environment. We incorporate the very latest in three-dimensional technology for the most precise results in the shortest treatment time possible.
We are also one of the few orthodontic practices in the area that specialize in the diagnosis and treatment of sleep apnea, snoring, and other airway disorders. Our patients not only come to us for a beautiful and healthy smile, but a better quality of life!
At Walker Orthodontics, we provide a variety of orthodontic treatment options for both adults and children. Whether you are looking for Invisalign, Clear Braces, or Traditional Metal Braces, Walker Orthodontics can help! Using a mix of cutting-edge technology and time-proven methods, we will give you a smile you can be proud of. Your smile is the first thing the world sees, we will make yours amazing!

Our Services



Adult Treatment


Early Treatment


Sleep Disorders


Invisalign & Invisalign Teen

Dr. Walker is an Invisalign Preferred Provider, which means that he treats many cases each year using this modern and clear alternative to traditional braces. The Invisalign system straightens your teeth using a series of clear, customized removable appliances called aligners. They allow for our patients to get the best orthodontic treatment available while enjoying the foods, drinks, and activities that they enjoy! Treatment with Invisalign is available for adults and teens in the Acton, Lunenburg, Ayer, Littleton, Westford, Harvard, Shirley, Westminster, Groton, and Worcester County Area. Call today to schedule a complimentary consultation and find out if Invisalign is the right choice for you!

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