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33 Years
experience
Emergency
services
Your Trusted Orthodontist in Houlton & Presque Isle, ME
Cassidy Orthodontics has been creating confident smiles for nearly three decades, combining advanced technology with personalized care. Our team, led by Dr. Donald Cassidy, specializes in orthodontic solutions tailored to patients of all ages, from children to adults. We utilize cutting-edge tools like the iTero Digital Impression System and Invisalign to deliver efficient, comfortable treatments.

With offices in Houlton and Presque Isle, Maine, we prioritize a family-friendly environment where patients feel valued and supported throughout their orthodontic journey. Our commitment to community involvement and continuous education ensures we remain at the forefront of orthodontic innovation while maintaining a focus on individualized care.
Services
Braces Invisalign Two-Phase Treatment Diode Laser Treatment iTero Digital Impressions
Details
  • Year established: 1993
Highlights and features
  • We offer 30 years of specialized orthodontic expertise.
  • We utilize advanced technology like iTero and Invisalign for precise, comfortable treatment.
  • Our practice maintains a family-centered environment focused on personalized care.
  • We provide comprehensive solutions for patients of all ages, from children to adults.
  • Our team actively contributes to community dental health initiatives.
What people say
Amazing staff Confidence boosting results Family friendly environment Visible improvements Personalized care
Services
Braces
Traditional braces use advanced wire technology to correct misaligned teeth and jaws. Ideal for patients seeking durable, effective treatment for complex dental issues. Our customized approach ensures optimal comfort and efficient results.
Invisalign
Invisalign offers nearly invisible aligners for discreet teeth straightening. Using SmartTrack material, this solution addresses crowding, gaps, and bite issues with removable trays that fit seamlessly into daily life.
Two-Phase Treatment
This specialized approach combines jaw development and teeth alignment for children. Phase One creates proper space for permanent teeth, while Phase Two ensures optimal bite and alignment for lasting results.
Diode Laser Treatment
Diode lasers precisely remove excess gum tissue to enhance smile aesthetics and bracket placement. This minimally invasive procedure improves tooth visibility and supports effective orthodontic treatment.
iTero Digital Impressions
iTero technology creates precise digital models of teeth in minutes without messy molds. This system enhances treatment planning accuracy and enables real-time visualization of expected smile transformations.
People
Dr. Donald Cassidy
Orthodontist
Dr. Cassidy has practiced orthodontics for 30 years, specializing in braces and Invisalign. He prioritizes patient-centered care and community involvement, holding leadership roles in regional dental organizations.
Lisa
Treatment Coordinator
Lisa has served as a certified orthodontic assistant since 2000, managing patient exams and insurance coordination. She enjoys fostering patient relationships and wood crafting in her free time.
Sheila
Orthodontic Assistant
With 28 years of experience, Sheila assists in procedures and lab work while emphasizing patient confidence. She values team collaboration and enjoys gardening and reading.
Joy
Orthodontic Assistant
Joy has worked at Cassidy Orthodontics since 2009, supporting Invisalign patients and lab operations. She resides in Presque Isle with her family and pets, enjoying local community connections.
Sandy
Lab Technician
Sandy has contributed as a certified assistant and lab technician since 2001. Her work creating dental appliances complements her family life and outdoor hobbies in northern Maine.
Questions
What orthodontic treatments do you offer?
We provide traditional braces, Invisalign clear aligners, two-phase treatment for children, diode laser procedures, and iTero digital impression technology.
Do you treat adult patients?
Yes, we offer orthodontic solutions for patients of all ages, including specialized Invisalign options for adults seeking discreet treatment.
How long does treatment typically last?
Treatment duration varies by case complexity, ranging from 6 to 30 months, with most standard cases completing in about 22 months.
Are emergency appointments available?
We provide guidance for orthodontic emergencies and schedule urgent cases promptly to address discomfort or appliance issues.
What technology do you use?
Our practice utilizes iTero 3D digital scanning, Invisalign clear aligners, and diode laser technology for enhanced precision and patient comfort.
Do you accept dental insurance?
Our team assists with insurance claims to maximize benefits, though we recommend verifying specific coverage details with your provider.