About Us

Pleasant Valley Dentistry

At Pleasant Valley Dentistry, we place the highest emphasis on your comfort while also providing high-quality, comprehensive dental care. We provide a variety of amenities to make your visit as pleasant as possible, from complementary beverages, to television and music to enjoy during treatment. Our skillful staff will work with you to schedule your visit promptly and answer questions you may have about your dental insurance. It is our goal that you leave each visit with our office with a smile on your face (and the confidence to show that smile off!). 

Meet Our Team


Bio coming soon!

Jen Belanger

Jen is excited to be joining Pleasant Valley Dentistry as our Office Coordinator and administrative lead. Jen will be the friendly face to greet you on arrival to our office, and will gladly provide you a tour of our facilities and answer any questions you may have. She has been in the dental industry for over 13 years and brings with her a wealth of knowledge in clinical dentistry as well as dental insurances, making her an excellent resource to answer your questions. Jen is committed to professional development, and has achieved DANB certification in dental assisting, as well as holding an active membership in the American Academy of Dental Office Managers (AADOM). She has a passion for educating our patients to ensure they are getting the treatment they need and deserve, and is highly skilled at explaining various payment options and communicating with dental insurance companies. 

Jen is originally a native of Uxbridge, and enjoys spending time with her extensive family in the area. She is an avid patriots fan, and enjoys golfing and camping. She currently resides in Douglas.


As a dental professional with 20 years in the field, Sonya places a high value on patient connection. "For me, it's the interactions I have with my patients that is the best part of what I do. I love my patients and love teaching them how to care for their teeth and gums." During your appointment, it is Sonya's goal to keep you comfortable, while delivering skillful and compassionate dental care. She understands that coming to see us isn't easy for some people, but it is important to her that when you walk out our door, you feel glad that you came.

Sonya is a resident of Sutton and a proud mom of three boys, one crazy dog, and all of her girls - her beloved chickens! She is an avid gardener, enjoys camping with her family, and is always busy doing home improvement projects with her husband.


Bio coming soon!


Bio coming soon!

Dr.Therese Susienka

Dr. Therese (pronounced "Teresa") is thrilled to have opened her own dental practice here in Sutton, MA. She brings with her a philosophy of compassionate dental care and high standards for excellent quality. Prior to opening her office, Dr. Therese spent years working alongside two skilled dentists in a family-oriented dental practice in Fitchburg, MA, where her gentle touch and friendly demeanor earned her the trust of many patients. She has a strong commitment to professional growth, and spends much of her free time learning about the latest technologies in dentistry, and keeping her skills sharp in all areas of general dentistry. She also has a passion for service, and has traveled on multiple mission trips to provide dental care to poverty-stricken communities in Central America. 

Originally from a small town in southern New Hampshire, Dr. Therese has called Massachusetts her home for over 10 years. She owes the utmost gratitude to her loving parents, who instilled in her a strong sense of work ethic, and to her husband who has unconditionally supported her in all of her endeavors. She currently resides in Northbridge with her husband Michael, and their feisty cat Jasmine. In her free time, Dr. Therese is often spending time with family locally, or in New Hampshire, and enjoys exercising, cooking, and playing board games.

Dr. Therese is an active member of the American Academy of Cosmetic Dentistry, the Academy of General Dentistry, the Massachusetts Dental Society, the Worcester-area Seattle Study Club, and the American Dental Association.