About OASECT
At OASECT, orthodontics is about more than just straight teeth. It’s about giving our patients the confidence to shine. For over 65 years, we’ve served families across southeastern Connecticut with two convenient locations in Waterford and Norwich. Whether you’re exploring treatment for your child or yourself, our experienced team is here to make your orthodontic journey feel easy, rewarding, and fun.
With state-of-the-art technology, personalized treatment plans, and a warm, welcoming atmosphere, OASECT is proud to be the trusted orthodontic partner for generations of families. Our patients leave our practice with a boost of confidence that lasts a lifetime.
What Sets Us Apart
We blend advanced tools with a genuine, people-first approach to orthodontics. From Damon™ self-ligating braces and clear aligners to virtual monitoring and impression-free 3D scanning, we make your care efficient, modern, and comfortable.
Our team believes that visiting the orthodontist should be the best part of your day, and we strive to make that true for every patient.
Trusted Invisalign® and Spark Aligner Providers
As a Platinum Invisalign® Provider and certified Spark aligner partner, OASECT stands out as a clear aligner leader in Connecticut. Our orthodontists tailor treatment to fit your lifestyle and goals—whether you’re considering clear aligners for yourself or your child.
Meet Our Orthodontists
Our orthodontists bring decades of experience, clinical expertise, and a true passion for creating smiles. They walk in our patients’ shoes as patients themselves, and that empathy drives every interaction.
Dr. James O’Leary
DMD
Dr. O’Leary brings a meticulous, patient-centered approach to every smile transformation. Known for his dedication to quality care and cutting-edge techniques, he has become a trusted name in orthodontics across the region.
Dr. Gregory Hack
DDS
Dr. Hack is committed to delivering confident smiles through personalized care and modern solutions. He has helped countless patients feel comfortable and confident throughout every phase of treatment.
Hear from Our Patients
With hundreds of five-star reviews and countless stories of smile success, OASECT has built a reputation for excellence in orthodontic care and patient satisfaction.
Visit Our Offices in Waterford and Norwich, CT
From your first consultation to your final smile reveal, our goal is to exceed your expectations at every step. We make orthodontics approachable, accessible, and genuinely enjoyable.
OASECT is here to help you smile brighter with orthodontics for all ages. Schedule your free consultation today to discover how orthodontics can change your life!