Innovating Beautiful Smiles with Braces and Invisalign since 1958

Your smile is our inspiration

Our top priority is providing you the highest quality of orthodontic care in a friendly, comfortable environment! We utilize the latest technological advances in orthodontics, including The Damon System self-ligating brackets – braces that can significantly shorten your treatment time – and Invisalign for a bracket free, virtually invisible way to straighten your teeth. By combining these with our advanced imaging systems, we ensure that you receive the best care possible.

About Us

eight years running

Top Docs

Dr. O’Leary and Dr. Hack have been voted Top Orthodontists in CT by their peers in Connecticut Magazine every year from 2008–2016.

Meet the Doctors

What's Happening

January 25, 2018

March Madness Bracket Pool

OASECT is hosting a March Madness bracket pool for patients of our practice and their immediate family members.  Only one entry per person.  The individual with the highest final score will win a $150 gift card to Dick’s Sporting Goods! Make sure to get your bracket(s) in before the pick deadline (March 15, 2018 at […]

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January 23, 2018

2018 Scout Contest

It’s that time again! In support of our local Girl Scout and Boy Scout groups, Orthodontic Associates of Southeastern Connecticut is holding our annual contest to help with fundraising efforts! This year’s theme is ‘DO A GOOD TURN DAILY’. In your own words, please tell us WHAT IT MEANS TO YOU TO DO A GOOD […]

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October 04, 2017

8th Annual Holiday Card Contest

  Get creative and submit your most unique design for our 8th Annual Holiday Card for your chance to win $500! If you choose to include a greeting, it should celebrate the diversity of all of our patients and community, such as ‘Season’s Greetings’ or ‘Happy Holidays’.  Designs can be handmade or digitally created. Handmade […]

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