Decoteau Orthodontics

Meet Dr. Jay M. Decoteau


jay decoteauI am truly blessed to have a wonderful family, and to have a fulfilling profession consisting of a fabulous caring staff with terrific patients. My staff and I have thrived on making meaningful friendships with our patients and their parents through the years.

I love being an orthodontist because of the satisfaction I get in helping others grow by creating beautiful smiles and helping develop confidence in my patients. It is wonderful to participate in changing my patients’ lives in a very positive way.

Education and Experience

I graduated in 1982 from the University of Maine with high distinction and was elected to Phi Kappa Phi National Honor Society. I received my dental education at Tufts University School of Dental Medicine where I graduated cum laude in 1986, and was elected to the Omicron Kappa Upsilon Dental Honor Society which inducts only the top 10% of graduating dentists. I then pursued my specialty training at Tufts, completing my orthodontic residency in 1988. I expanded my practice into Merrimack, NH, in 1990.

I am currently a member of the American Dental Association, American Association of Orthodontists, Massachusetts Dental Society, New Hampshire Dental Society, and Northeast Society of Orthodontists, and am a Board Certified Diplomate of the American Board of Orthodontics.

The Value of Community

I am originally from Dunstable, Massachusetts, and attended Groton-Dunstable High School where I excelled academically and athletically. I have always loved this community and chose to return to Groton in 1988 after my training to establish my orthodontic practice and raise my family.

 I am engaged in community, family and fun and I encourage my staff to participate as well. Our philosophy has always been to treat every patient as though he or she was our own child, parent, or sibling. I enjoy getting to know my patients and learning about their lives. I have developed state-of-the-art orthodontic practices based on family values in small town New England communities.

Outside the Office

I enjoy spending my free time with my wife, Lea, and our four children. I also enjoy my hobbies of playing basketball, golf, and tennis, as well as biking and boating.


On this site, you can learn about orthodontists—specialists in the diagnosis, prevention and treatment of dental and facial irregularities. The correction of tooth and jaw alignment results in a healthy, attractive smile that's good for life. The ADA is the professional association of dentists committed to the public's oral health, ethics, science and professional advancement. The mission of The American Board of Orthodontics is to establish and maintain the highest standards of clinical excellence in orthodontics.

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