“We had a wonderful experience with Dr. Cartier. She made all 3 of my children’s smiles picture perfect. We loved her professionalism as well as her knowledge, accommodating and friendly staff. I highly recommend her.”
Orthodontic Treatment In Southampton, NY
Comprehensive orthodontic care designed for comfort, confidence, and lasting smile changes.
Your Smile, Our Passion
Precision Care
Orthodontic treatment should do more than straighten teeth. It should improve alignment, support bite function, and create a smile that feels healthier, more balanced, and more confident in everyday life. That is why every treatment plan is built around the smile, the bite, and the patient, with recommendations shaped by age, development, and the kind of result that will hold up well over time.
Meet Dr. Cartier
For decades, Dr. Michelle Cartier has had the privilege of creating beautifully aligned smiles for patients across the Hamptons. What continues to shape her work is not only the transformation of a smile, but the confidence that comes with it.
Dr. Michelle T. Cartier, DDS, CAGS, earned her DDS from Georgetown University Dental School and completed her orthodontic specialty training at Boston University. She has been creating smiles since 1995 and has been board certified since 2012.
Patients trust Dr. Cartier not only for her credentials, but for the way she delivers care: calm, precise, and centered on the individual. Every treatment plan is built with close attention to both appearance and function, so the result feels balanced, healthy, and built to last.
Smile Transformations
Every smile transformation should look natural, feel balanced, and support the way a patient lives day to day. Whether treatment involves braces, Invisalign®, early intervention, or more complex correction, the goal is always the same: a result that improves alignment, supports function, and leaves patients feeling more confident in their smile.
What Sets Us Apart
Patients come to Cartier Orthodontics for treatment, but they stay confident in the process because of how care is delivered.
What makes our practice different:
Board-Certified Orthodontic Expertise
Treatment is led by Dr. Michelle Cartier, whose board certification reflects advanced orthodontic training and a strong commitment to precision, quality, and long-term results.
Care for Children, Teens, and Adults
We treat patients at every stage of life, with recommendations shaped by age, development, lifestyle, and the specific orthodontic needs of the smile.
Two Convenient East End Locations
With offices in Southampton and Wainscott, it is easier to begin treatment and keep up with visits without adding unnecessary inconvenience to your schedule.
Free Initial Consultations
A complimentary consultation makes it easier to understand your options, ask questions, and find out what treatment may be the right fit before making a commitment.
Personalized Care
Every treatment plan is built around the individual, with close attention to comfort, clarity, and the kind of result that looks natural and functions well over time.
Virtual Appointments
We offer virtual appointments for Invisalign® and aligner patients when certain follow-up visits can be handled more conveniently from home.
Virtual visits are available for:
- Current Invisalign® or aligner patients
- Select progress checks
- Appropriate follow-up monitoring
Virtual appointments are not available for first-time patients. New patients still begin with an in-person consultation so we can evaluate the smile and bite properly from the start.
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Take a FREE Invisalign® assessment
Mobile devices only!
High Tech Care
Advanced technology helps us plan treatment with greater accuracy and monitor progress with more clarity. At Cartier Orthodontics, these tools support a more informed experience from the beginning, making it easier to evaluate the smile, explain the plan, and guide treatment with precision.
Our Technology
Start Your Journey
The right orthodontic plan should feel understandable, comfortable, and worth starting. Whether you are considering braces, Invisalign®, airway-focused treatment, or early orthodontic care for your child, we are here to help you understand your options and move forward with confidence.
Patient Testimonials
Joanne J
“Dr. Cartier is amazing and her staff is also fabulous. I had Invisalign and teeth whitening and I am thrilled with my new smile. If you or anyone you know wants straight teeth, Dr. Cartier is the one to go to.”
Michelle B
“Dr. Cartier and the entire team set the bar high. The atmosphere is warm, the care is thoughtful, and the teamwork is seamless. Every detail feels intentional, and it’s clear patients are the top priority from the moment you walk in.”
Elif K
“We had a wonderful experience with Dr. Cartier. She made all 3 of my children’s smiles picture perfect. We loved her professionalism as well as her knowledge, accommodating and friendly staff. I highly recommend her.”
Joanne J
“Dr. Cartier and the entire team set the bar high. The atmosphere is warm, the care is thoughtful, and the teamwork is seamless. Every detail feels intentional, and it’s clear patients are the top priority from the moment you walk in.”
Elif K
Our Locations
We welcome patients at both of our East End locations and provide the same doctor-led care, thoughtful planning, and personalized attention throughout treatment.