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

eleven 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 since 2008.

Meet the Doctors

What's Happening

March 04, 2021

March 2021 Update & COVID Travel Reminder

March 4, 2021 Greetings to all patients, parents, and friends of OASECT! Spring is in the air, and we’re all looking forward to getting the season of COVID-19 behind us.  We are SO APPRECIATIVE for the ongoing support, confidence, and understanding that so many of our patient families have shown us over this most trying […]

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May 15, 2020

Update on OASECT Re-Opening

May 15, 2020 To all OASECT patients and parents: We hope that this letter finds you and your family in good health and in good spirits. Our community has been through a lot over the past few months, and all of us are looking forward to resuming our normal habits and routines. While many things […]

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April 14, 2020

April 14th Update: OASECT Office Closures Due to COVID-19

OASECT offices will remain CLOSED for regular visits through at least April 22 To all Patients, Families and Friends of OASECT, Over the past week we have connected with many of our wonderful patients and families via text, on the phone, and via “virtual consultations”.  It has been great to hear from you!  We have […]

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