Meet Our Staff

We are a full service dental practice and we strive to be the best place for you and your loved ones to turn to for all your dental care needs and advice. All of our dentists graduated from Tufts Dental School and take great pride in making sure our patients are 100% satisfied. Take a few minutes to meet our great team!


Dr Hien half

Hien T. Duong, DMD completed his undergraduate studies at California State University, Los Angeles with a Bachelor of Science degree. He went on to attend Tufts University School of Dental Medicine in Boston and graduated with his dental degree (DMD) near the top of his class.

To provide the most advanced dental care for his patients, Dr. Duong has attended many state-of-the-art continuing education programs, ensuring that his patients receive the most current comprehensive dental care. He maintains his dental license in both California and Massachusetts. Dr. Duong is an active member of the American Dental Association, the Massachusetts Dental Society, and the South Shore District Dental Society.

When not caring for patients, Dr. Duong enjoys spending time travelling with his wife, Tracey, and their two children, Valerie and Dylan.

Dr Tracey Half

Tracey Lai, DMD obtained her Bachelor of Science degree in Biology from the California State University, Los Angeles. She then moved to Boston and acheived her dental degree (DMD) from Tufts University School of Dental Medicine. Dr. Lai earned her dental license in both California and Massachusetts.

Dr. Lai has dedicated her professional career to providing her patients with excellence in dentistry. She continues to expand her dental and medical knowledge by attending continuing education lectures and seminars to stay abreast with the most modern clinical and diagnostic dental treatment.

In her free time, Dr. Lai enjoys cooking for her husband, Hien, and playing with their two children.



Patty Sweeney, RDH has been a part of our professional team for seven years. She graduated from the Forsyth School for Dental Hygenists and Northeastern University in 1979. Patty has worked in pediatric and adult “general practice” throughout her career. She is a member of the American Dental Hygenist Association and attends meetings and continuing education classes regularly. In her free time, Patty enjoys spending time with family and friends.



Sabrina Dorfmann is an aspiring dentist who has been with TNT Dental Care since 2014. Graduating from Tufts University with a bachelor’s degree in Biochemistry and Italian Studies, Sabrina joined our team as a receptionist/dental assistant. Sabrina enjoys learning from such a professional, fun and energetic team and is looking forward to dental school. When not in the office, she loves to watch foreign movies with her family and travel around New England with friends.



Desirae Ortiz is a certified dental assistant who graduated from Everest Institute in 2009. She has been a part of our team since 2012. Desi loves to work with people and  her enthusiastic attitude helps patients relax during procedures.  In her spare time, Desi loves to play Dance Central on the X-box with her family. She is fluent in both English and Spanish.