Meet Our Experienced Team

Dr. Dennis C. Hiller, DDS, MSD

Dr. Hiller graduated from Temple University School of Dentistry with a Doctor of Dental Surgery degree as well as a Master of Science in dentistry and a certificate of specialization in orthodontics. He started practicing orthodontics in Conway and Berlin, New Hampshire, in 1983 and later opened three locations to serve the communities of Littleton and Plymouth, New Hampshire and St. Johnsbury, Vermont.

Dr. Hiller is known for his warm personality and personalized approach to patient care. He is passionate about his work and loves seeing patients feel more confident through their new smile.

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Visit Us Today to Create

The Smile You’ve Always Wanted

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Our Services

Invisalign®

We proudly offer Invisalign® treatment — a clear, comfortable and convenient way to straighten your teeth for a beautifully aligned smile.

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LightForce

Experience the future of orthodontics with LightForce braces: personalized, 3D-printed and tailored for efficient, precise alignment, ensuring a faster and more comfortable treatment.

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Conventional Braces

Discover the reliability of conventional braces, a time-tested and effective orthodontic solution used to correct crooked, uneven and gapped teeth.

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Don’t just take our word for it.

Dr Dennis Hiller in Littleton New Hampshire

My son went for his first visit today. Super nice staff, professional and courteous! State of the art equipment. I am confident he will recieve the best care. Very pleased.

Robert W

Dr Dennis Hiller in Littleton New Hampshire

The staff is friendly. Dr. Hiller is amazing as always. I am impressed with the whol crew. They are a great support system. My daughter has severe anxiety. The staff goes above and beyond . I am very pleased!!!!!

Danielle M

Dr Dennis Hiller in Littleton New Hampshire

My experience with Dr. Hiller was great. Getting ahold of them with questions or rescheduling was easy. All of his coworkers are also great and fun to be around! Especially Mya! Very satisfied with the work they did to my teeth.

Jarrett W

Dr Dennis Hiller in Littleton New Hampshire

Thank you for listening to our concerns and helping to correct our daughter’s jaw pain. We appreciate how cordial and kind you always were to our daughter, teens are not always received that way.

Kristin B

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