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Meet The Doctor

Dr. Cassidy has been creating incredible smiles, one person at a time, for almost 30 years. He looks forward to helping you achieve your healthiest, best smile ... one you’ll love for a lifetime!
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Welcome to Cassidy Orthodontics, LLC

At Cassidy Orthodontics, LLC, we don’t just straighten teeth; we build confidence! Dr. Donald Cassidy and our team have been creating incredible smiles for almost 30 years. Our practice has grown thanks to referrals from our patients and is honored to now be creating second- and third-generations of smiles!

We provide the newest and best treatment options while maintaining a family atmosphere where you are the center of our focus. Ours is an orthodontic office where you immediately feel at home, important, and cared for. We’ve created a space that’s inviting and relaxed, where you can be yourself.

You deserve an orthodontic experience that’s designed to meet all your needs, whether you want traditional braces with advanced wire technology or Invisalign® treatment. We embrace new technology, including iTero® 3D digital imaging and soft tissue laser treatment, to give you the best possible smile results in the shortest amount of time.

Please contact our Presque Isle or Houlton, ME orthodontic office and schedule a complimentary consultation. We’ll be glad to introduce you to our practice, learn about your smile dreams, and talk about how we can help you make those dreams a reality. Call and schedule a consultation today!

The Latest Technology



laser dentistry