Dental Staff

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

Nicholas T. Papapetros, DMD

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 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.

Leo Kharin, DMD

Dentist in Bedford, MA

Great Meadows Dental Group

Leo Kharin, DMD

Dr. Kharin was born in Moscow, Russia, moving to the United States in 2000. He completed his undergraduate education at the University of Massachusetts Boston in 2006, graduating Magna Cum Laude with Bachelor of Science in psychology. He earned his D.M.D. from Tufts University School of Dental Medicine. His Advanced Education in General Dentistry residency was completed at Winslow Indian Health Care Center in Winslow, Arizona. After returning to New England, Dr. Kharin practiced in private offices in Massachusetts and Connecticut.

Dr. Kharin has a true passion for the profession of dentistry. His background in behavioral sciences aids him in deeply connecting with his patients and tailoring his treatment to their unique needs. Since graduating in 2010, he has been taking numerous continuing education courses focusing on implant placement and restoration, endodontics, oral surgery and his main passion – complex restorative procedures, including full mouth rehabilitation. He is an active member of American Dental Association and Massachusetts Dental Society.

Dr. Kharin lives in Watertown and spends his spare time swimming, playing tennis and hiking the mountains of Maine and New Hampshire. He is also a student of photography and world history.

Jessica Ristuccia, DMD

Dentist in Bedford, MA

Great Meadows Dental Group

Leo Kharin, DMD

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.

Jennifer - Business Manager, Director of Operations

Jennifer joined the team in 2009 as a dental hygienist, after obtaining her bachelor's degree from Forsyth School of Dental Hygiene at Massachusetts College of Pharmacy and Health Sciences. Since starting in 2009, Jennifer has transitioned into the business manager, and director of operations. She continues to further her education, and has become a Fellow of the American Association of Dental Office Management (FAADOM). Jennifer 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. Jennifer focuses on team training, networking, practice culture and furthering the education of the team. When she is not at the office, Jennifer enjoys spending time with her husband Dominick, and their two daughters Addison and Caroline. They loving taking trips to the lakes region of New Hampshire.


Kelly - Office Manager

Kelly 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 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

Denise 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.


Julia - Patient Coordinator

Julia joined our team in January of 2017 as a patient coordinator, helping with front desk duties and tasks. She is CPR certified and continually goes above and beyond to assist patients, and her team. During her time away from the office, Julia likes going on walks and hikes with her boyfriend and their dog. She also enjoys going to the beach in the summer, visiting new restaurants and attending concerts.


Sandy - Registered Dental Hygienist

Sandy 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.


Shana - Registered Dental Hygienist

Shana received her dental hygiene degree from Middlesex Community College and joined our team at Great Meadows Dental Group in April of 2016. She has advanced training in local anesthesia as well as CPR training. When she is not at the office, Shana loves working out, running, lifting weights, cardio kickboxing, yoga and Pilates. She enjoys exploring new places in New England with her kids and reading personal development books.