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Gillis Dental dental logo
1671 Main St | Willimantic, CT 06226
Free New Patient Offer
Free Consultation

#1 Choice for Dentistry in Windham

  • In the Heart of Windham
  • Friendly Team of Dental Professionals
  • Achieve Great Oral & Overall Health
  • Warm & Inviting Office
  • One-Stop Convenience
  • Top Choice for Your Family
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What We Do

  • General Dentistry
  • Root Canals
  • Orthodontics
  • Gum Disease Treatment
  • Invisalign®
  • Porcelain Veneers
  • Extractions
  • Dentures & Partials
  • Dental Implants
  • Full Mouth Reconstruction
  • Teeth Whitening
  • Snoring & Sleep Apnea
  • Bridges & Crowns
  • TMJ Treatment

Why Choose Us

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“My experience with Tori was the best!!! She was super gentle with my teeth and even offered me some numbing gel when they were sensitive. I have never had someone so concerned with my comfort while cleaning my teeth. She’s the only one I trust with my teeth now!”

- Brook F.

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“Groton dental group is the most professional and courteous dental office I have ever had the experience of being a patient of. Dr. Dennis Flanagan and his entire staff are incredible! Thank you for making my dental work pain free and for giving me the confidence to smile in public once again

- Andrew W.

Where To Find Us

Conveniently located right off US Hwy 6 and right next to The BJ’s Wholesale Club, our practice is a short drive from anywhere in Connecticut. Our evening hours make it easy for us to welcome patients from Providence, Hartford, Springfield, and many other, surrounding communities. Our goal is to always make the short drive worth the trip.

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Office hours

8:30 AM - 5:00 PM
8:30 AM - 7:00 PM
8:30 AM - 5:00 PM
8:30 AM - 5:00 PM
8:00 AM - 4:30 PM
8:30 AM - 1:00 PM

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How To Get Started

Thank you for your interest in Windham Dental. Please submit a form to request an appointment and a member of our team will reach out to you promptly. If you have an emergency, please call us at (860) 456-3153 for immediate assistance.

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*OUR NEW PATIENT OFFER IS A GREAT WAY TO BECOME FAMILIAR WITH GROTON DENTAL. NEW PATIENTS ONLY. REQUIRES PAYMENT AT FIRST VISIT. INCLUDES ALL NECESSARY X-RAYS ONLY. IF OTHER TREATMENTS ARE REQUIRED, YOUR CLEANING (PROPHYLAXIS) MAY BE SCHEDULED FOR A FUTURE DATE AND/OR MAY BE APPLIED TO A SERVICE OF EQUAL OR GREATER VALUE. MAY NOT BE USED MORE THAN ONCE AND CANNOT BE COMBINED WITH OTHER OFFERS FOR DISCOUNTED FEES. NO CASH VALUE.

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