Meet Our Team

The brief descriptions below are designed to familiarize you with our staff's training, professional credentials and work experience.

Nicholas T. Papapetros, DMD | Dentist in Bedford, MA

Nicholas T. Papapetros, DMD, FAGD

Dentist in Bedford, MA

Great Meadows Dental Group

Dr. Papapetros has been delivering the highest quality dental care to his community since 1992. Originally from Quincy, Massachusetts, Dr. Papapetros earned his undergraduate degree in biology from Colby College in Waterville, Maine. He then went on to Tufts University School of Dental Medicine, where he earned his dental degree and student awards from both the American College of Dentists and the American Association of Endodontists. After earning his dental degree Dr. Papapetros then completed a general practice residency at Lenox Hill Hospital in New York.

Dedicated to continuing education, Dr. Papapetros completed more than one thousand credit hours in continuing education courses and seminars since beginning his private practice. He has studied at such prestigious institutions as the L.D. Pankey Institute for Advanced Dental Education, the Las Vegas Institute for Advanced Dental Studies, and Dawson Center for Advanced Dental Study. Dr. Papapetros is a Fellow in the International Congress of Oral Implantologists, International College of Dentists, American College of Dentists, and the Pierre Fauchard Academy. Dr. Papapetros is past President of the Tufts University School of Dental Medicine Alumni Association and the Merrimack Valley Dental Society.

Dr. Papapetros is an active member in many other leading dental and professional organizations, including International Congress of Oral Implantologists, American Dental Society, Academy of General Dentistry, Massachusetts Dental Society, New Hampshire Dental Society, Merrimack Valley Dental Society, Greater Lawrence Dental Society, Tufts University School of Dental Medicine Alumni Association, and L.D. Pankey Foundation.

In his spare time, Dr. Papapetros enjoys spending time with his wife, Andrea, and their four children: Theo, Isabella, Olivia, and Zachary.

Jessica Ristuccia, DMD

Dentist in Bedford, MA

Great Meadows Dental Group

Leo Kharin, DMD | Dentist in Bedford, MA

Dr. Jessica Ristuccia graduated as a Balfour Scholar from Wheaton College receiving her Bachelor of Arts in Biology.  Prior to attending Tufts School of Dental Medicine in 2007, Dr. Jessica Ristuccia participated in research on the protozoan Toxoplasma gondii in the Microbiology and Immunology Dept. at Dartmouth Medical School where she was later published in Eukaryotic Cell and the International Journal of Parasitology.  Dr. Ristuccia earned her Doctorate of Dental Medicine from Tufts School of Dental Medicine where she received the award for Clinical Excellence in Restorative Dentistry.
Dr. Ristuccia focuses on patient comfort through thorough diagnosis and treatment planning allowing her to provide comprehensive care to her patients including a wide range of cosmetic and restorative dentistry, root canal therapy, teeth whitening, implants, veneers, teeth alignment, and crowns.  Dr. Ristuccia is a member of the Massachusetts Dental Society and the American Dental Association.  Dr. Ristuccia attends continuing education courses including the Yankee Dental Congress in Boston to keep up-to-date with the latest advancements in dentistry.

Outside of the dental office, Dr. Ristuccia enjoys traveling and spending time with her family as well as practicing yoga, cycling, and kayaking.

Arietta Rigopoulos, DMD

Dentist in Bedford, MA

Great Meadows Dental Group

Dr. Arietta Rigopoulos, DMD | Dentist in Bedford, MA

Dr. Rigopoulos received her dental degree from Tufts University School of Dental Medicine in 2019. Prior to dental school, she received her B.A in Chemistry from McGill University in Montreal, QC.

Dr. Rigopoulos has been the recipient of several scholarships including the Tufts Merit Scholarship, NEHMDS Scholarship, and PYA Scholarship. She was on Dean's List at Tufts and selected as both a tutor and teaching assistant to help dental students in both clinical and didactic courses. She was very involved in research during her dental school career receiving the Bates Student Research Fellowship all four years and was the recipient of the Research Committee Best Science Award twice, oral presentations at IADR, and a poster presentation at AADR. In addition to her research Dr. Rigopoulos has volunteered extensively throughout her community serving on the community service board for an outreach program at Cardinal Medeiros Homeless Shelter and has dedicated countless hours volunteering at Camp Sunshine in Casco, ME, Give Kids a Smile Day, Special Olympics, Smile, Share and Care and much more.

Dr. Rigopoulos is a member of the Massachusetts Dental Society and a regular attendee of Yankee Dental Congress in Boston allowing her to attend continuing education courses and stay up-to-date with the latest dental technology, materials, and methods.

In her free time, Dr. Rigopoulos enjoys spending time with her large Greek family and friends. She also enjoys traveling, reading, baking, and watching the New England sports teams.

Jennifer - Director of Operations

Dental Staff in Bedford, MAJennifer has been a part of our team since 2009 after she obtained her bachelor’s degree from Forsyth School of Dental Hygiene at Massachusetts College of Pharmacy and Health Sciences. Upon joining us a dental hygienist, Jennifer’s role has grown significantly. Through extensive training and continuing education courses, she now acts as our director of operations where she oversees our dental team and keeps them up-to-date on the ever-changing advances within the field. Since joining our team, Jennifer has taken on a true passion for dentistry, and continually strives to advance her education, and pass on her knowledge and charisma. She has become a Fellow of the American Association of Dental Office Management (FAADOM), a prestigious accomplishment obtained after meeting extensive requirements and training. She is also the founder and president of the Boston Chapter of AADOM, a non-profit organization that brings local dental managers and practice administration together, for continuing education and networking events. In 2019, she was recognized for her on-going hard work and dedication, as she was nominated and honored by AADOM as a Practice Administrator of Distinction at their annual conference. 

Through her extensive dental background, Jennifer focuses on team training, networking, practice culture, and furthering the education of the team. She strives to build a cohesive dental family that provides high-quality dental care to each and every individual, while focusing on patient education and the importance of a trusted, welcoming dental home. Every year, Jennifer joins her team as they attend the Yankee Dental Congress; New England’s largest meeting for dental professionals that are seeking the highest quality of continuing education. Each year, Jennifer takes multiple courses highlighting various areas of dentistry including patient care and dental office management. During her time away from the office, Jennifer enjoys spending time with her husband Dominick, and their two daughters Addison and Caroline. You can find them taking trips to the lakes region of New Hampshire, and spending time with their extended family and friends! 

Kelly - Office Manager

Dental Staff in Bedford, MAKelly received her education in dental assisting from Quinsigamond Community College and joined our office in April of 2013. Since then, she has advanced her training becoming a certified dental assistant, a certified preventive functions dental assistant, and an AADOM Fellow. Kelly is also the vice president of the Boston Chapter of AADOM. As an office manager, she helps patients at the front desk, communicates with insurance companies, schedules appointments, handles billing procedures, and supports the front desk with additional duties. Kelly loves spending time with her family at the beach, camping, gardening, and hiking. She recently finished an amazing hike up Mount Washington!


Denise - Registered Dental Assistant

Dental Staff in Bedford, MADenise received her dental assisting certificate from Middlesex Community College and joined our office in April of 2016. She has advanced her training, becoming a certified dental assistant (CDA). Denise has additional training in CPR and is a trained skill worker for individuals with intellectual and physical disabilities. Denise volunteers at the Lowell General Hospital Cancer Walk and loves to spend time with her family.


Sandy - Registered Dental Hygienist

Dental Staff in Bedford, MASandy joined our team as a registered dental hygienist in May of 2018, with an associate's degree from Middlesex Community College. She has advanced training in CPR and holds her certification to administer local anesthesia. She hopes to further her education through graduate studies and possibly teach, or enter into public health. When she is not seeing patients, Sandy loves spending time with her family and her 2 children and taking additional courses through MCPHS University.