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Welcome to Cassidy Orthodontics – Invisalign®, Braces & Orthodontics for Children and Adults in Presque Isle and Houlton, Maine (ME)!

–Making the world more beautiful one smile at a time–

Thank you for visiting the orthodontic web site of Dr. Donald Cassidy. At Cassidy Orthodontics, our expert orthodontist and talented staff work hard to bring beautiful smiles to two convenient locations in Presque Isle and Houlton Maine (ME).

Please use this web site to learn more about orthodontics for children and adults including traditional metal braces, clear braces, and even Invisalign "invisible" braces. Dr. Cassidy is an Invisalign Certified orthodontist – bringing you a visibly straight smile without the look and feel of traditional metal braces. Ask our orthodontist about creating a custom treatment plan for yourself or your child and learn how Dr. Cassidy is making Presque Isle and Houlton, Maine (ME) more beautiful one smile at a time!