Family Dentist in Middlebury, CT

All our professionals at Dr. Gagne's office maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in dentistry.

John R. Gagné, D.D.S.

John R. Gagné, D.D.S.

Family Dentist in Middlebury, CT


The Taft School  , 1980
 Colby College  , 1984 BA Biology
 Southern CT State University  , 1986 MS Biology
 Baltimore College of Dental Surgery, University of Maryland  , 1990 DDS
St. Mary's Hospital, 1991 GPR Certificate
Attending Staff St. Mary's Hospital, 1991-2001

Organized Dentistry Involvement:

DSGW: Multiple councils and President, 1999
CSDA: Multiple councils, CSDA Delegate duties, etc.
CODPAC Chair 2002-2006, NEDLC 2003-2008, CODPAC Treasurer 2007 ADA: House of Delegates: Alt & Delegate several years (2003-2009)

Organizational Involvement:

American Dental Association  , 1991-
 Academy of General Dentistry  , 1991-
 Academy of Laser Dentistry  , 2005-
 International College of Dentists  , Fellow Since 2009

On a Personal Note:

Dr. Gagné is a Professional Skier. He was a Level III Alpine Instructor and Level I certified Telemark Instructor. He is a graduate of Skip Barber Racing School in 2004, and holds a competition license.

In the summer he is a racing instructor. He is also an avid outdoorsman in the Maine mountains.

He has been married to his lovely wife, Susan for over 33 years. He has Toy Poodles and is their groomer. He is quite hands on and loves to take care of his property, cars, and other things around the house. He is passionate about the use of LASERS in dentistry.

DeeDee DeeDee - Office Manager

Office Manager

DeeDee graduated from Pacific College of Medical and Dental Assistants in California in 1981. She worked for 6 years as a dental assistant and receptionist. DeeDee moved to Connecticut in 1986 and worked as an assistant and receptionist before coming to work at our office in 2001 as the office manager. She is married with two sons, two grandsons, and two granddaughters. DeeDee enjoys reading,  hiking, movies, working out, gardening and just spending time outdoors. DeeDee also loves spending time with her husband, dog Thor, and cats. She enjoys working with our wonderful patients and looks forward to seeing them.

Maureen - Hygienist  Maureen


Maureen graduated from Fones School for Dental Hygiene in 1998. She has worked in our office since 1999. She loves our office and enjoys working with our patients. Maureen has two daughters and they enjoy spending time together and going on road trips. She also likes gardening. Maureen is dedicated to the dental education of her patients.

Diane - Receptionist / Assistant


Receptionist/ Assistant

Diane has been assistant/receptionist in our office since July 1999.  In 2008 Diane received her radiology license from the University of Bridgeport.  She also received her Infection Control license in March of 2017. Diane is a very important part of our front office team. She is married and has two boys. Diane loves spending time with her family and friends. She also enjoys the summer. Diane will always  put a smile on people's faces.

DeAnndra - Assistant  DeAnndra


Dee joined us in March of 2017. She graduated Watertown High in 2010. She attended Porter and Chester and graduated in 2015 from the Dental Assisting program. Dee is a dedicated dental assistant that loves her job. When she is not keeping our patients smiling she is being a dedicated mother to her daughter. Dee is certified in radiology, infection control, and CPR. She wishes to continue her education in hygiene to further her career in the field she loves. Dee loves nature, cooking, and family. In her free time she makes homemade / handcrafted candles. She can't wait to meet you.

DeAnndra - Assistant  Chrissie

Assistant/ Receptionist

Chrissie was an assistant/manager for 35 years with Dr. Kanca. We are so fortunate that Chrissie chose to join our team in January 2023, when Dr. Gagne purchased Dr. Kanca’s Practice. She is an assistant/receptionist along with Diane at the front desk. Chrissie graduated from Peele School Community College. She also has her CPR certification. Chrissie is a very important part of our office. She is energetic and always has a smile. She is married and has twin boys. Chrissie loves walking her dogs and Zumba. She looks forward to meeting you and helping you with anything she can.

DeAnndra - Assistant  Nancy


Nancy joined our practice in April after we moved to Middlebury. We are very happy she chose to join our team! Nancy has been practicing Dental Hygiene since graduating from Tunxis Community College in 1990. She received a bachelor’s degree from UCONN in 2019 and maintains a license in massage therapy. Nancy loves her male kitty, and enjoys cycling, hiking and travel. She looks forward to meeting you!

DeAnndra - Assistant  Crystal


Crystal joined our team in July of 2023. She has been a dental assistant for 18 years. Crystal went to dental assistant school in Florida, where she was born and raised. Crystal graduated with an expanded functions dental assistant degree. She says, “I have been blessed to become part of this amazing dental practice.” Crystal loves being a dental assistant and being able to help my patients with their dental care and needs. She feels dental assisting gives her the opportunity to be creative, help others, and to learn new things. She has a son, dog, and cat. Crystal loves exploring new places, making crystal jewelry/ candles, hiking, gardening and spending time with family and friends. She is looking forward to being able to assist you with your dental needs and to welcome you to our office.

Shirley  Shirley


Shirley graduated from Tunxis Community College in 1983 and has over 40 years of dental experience. She knows that it is vital to our success to build a foundation of trust by treating you as a special individual. Her goal is provide you with the best comprehensive patient care with your comfort in mind. Shirley enjoys spending time with her husband and two adult daughters. Cooking and traveling are her favorite things.


John R. Gagné

Dr. Gagné, a member of the American Dental Association and the Academy of Laser Dentistry, is committed to providing his patients with comprehensive dental care.

Click Here to Read More

Questions or Comments?

We encourage you to contact us whenever you have an interest or concern about our services.