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Nathan S. Birnbaum, D.D.S., C.A.G.S
Heidi B. Aaronson, D.M.D.
1 Washington Street, Suite 306
Wellesley, MA 02481
Phone: 781-431-9999
Fax: 781-431-9195

Best of Boston Dentists!

Dr. Nathan Birnbaum and Dr. Heidi Aaronson have been selected as two of the top dentists in Boston and are featured in Boston Magazine's Top Dentists issue for the fifth straight year!

Thank you to our patients for their continued support.

Is your child

tongue tied?

Welcome to New Generation Dental Center, a third-generation dental practice serving the Greater Boston area, conveniently located on the Newton-Wellesley line. Dr. Nathan Birnbaum, a prosthodontist, and Dr. Heidi Aaronson, a general dentist, believe in the importance of excellent oral hygiene and are committed to providing you and your family with the best dental care in a modern, professional environment.

A doctor is on-call for emergencies 7 days a week. If you are experiencing a true dental emergency, please call our office at 781-431-9999 and press "1" for the emergency line and leave a message. One of the doctors will call you back as soon as possible. (Please note, emergency messages left in the overnight hours may not be received until the morning. If you need immediate assistance, call 911 or go to the emergency room)

New Generation Dental Center is conveniently located in Wellesley, Massachusetts, just over the Newton-Wellesley border. Enter your address in the directions in the map below to receive driving directions from Google Maps.

Office Hours

Monday 8-6

Tuesday 8-6

Wednesday 8-6

Thursday 8-6

New Patients


Dr. Nathan Birnbaum

Best known for his eye for detail and his superior clinical skills, prosthodontist Dr. Nathan Birnbaum is able to transform any mouth into a work of art. He has lectured internationally and has been featured in multiple journals, magazines, and the most highly respected textbook in cosmetic dentistry. Dr. Birnbaum is a Fellow in both the American College of Dentists and the Internation College of Dentists, and a member of many respected dental organizations.

Dr. Heidi Aaronson
General Dentist

With a passion for sports dentistry, children, and digital technology, general dentist Dr. Heidi Aaronson loves treating patients of all ages with a wide range of dental needs. She is the founder of Tooth Day at Fenway Park and has been sought after by players on several Boston sports teams for her knowledge and ability in the field of sports dentistry and digital impressioning technology. She is also considered to be one of the leading tongue tie specialists in the area, having performed thousands of frenectomies over the past several years.


Treatments and Services

Restorative Dentistry

Dr. Birnbaum is a prosthodontist and has received specialized training in prosthetic dentistry - crowns, veneers, inlays, onlays, bridges, implant restorations, dentures, and full mouth reconstructions. Dr. Birnbaum and Dr. Aaronson use the best quality materials and labs and will stand behind their work for years to come. Treatments are completed in a comfortable operatory using the latest in dental diagnostic and treatment technology. 

TMJ and Botox

Both Dr. Birnbaum and Dr. Aaronson understand the complexities of neuromuscular dentistry and how to properly diagnose and treat Temporomandibular Disorder (TMJ) through a variety of treatment modalities. We offer a wide range of treatment options, from Aqualizers and TENS therapy to night guards and Botox treatment to help alleviate jaw pain and migraines. 

Lip and Tongue Ties

Dr. Aaronson has been trained in proper diagnosis and treatment of lip and tongue ties and is considered one of the top doctors in the area to treat lip and tongue ties. She uses a laser to quickly and accurately release ties to allow for proper movement. We are also proud to have a trained lactation counselor on staff to help moms and babies during and after treatment. Our breastfeeding-friendly office has comfortable chairs for you to nurse your baby before and after treatment. 

Sports Dentistry

A member of the Academy for Sports Dentistry, Dr. Aaronson has a passion for treating athletes, from protection by mouthguards and prevention by educating about the risk of chewing tobacco, to treatment of traumatic sports injuries. She has lectured and written multiple articles about custom mouthguards, and she has been sought out by the Red Sox, Celtics, and Bruins for her ability to protect athletes..

Cosmetic Dentistry

Our doctors have a focus on esthetic dentistry and have been proud members of the American Academy of Facial Esthetics and the Academy of Cosmetic Dentistry for years. They are highly skilled when it comes to cosmetic and esthetic restorations - bonding, veneers, Invisalign, Botox, and tooth whitening are among many of the cosmetic treatments available in our office. Come see why our patients always leave with a smile!

State-of-the-Art Technology

We pride ourselves on staying on the cutting edge of dental technology.  We research every new technology we bring into our office and only offer the highest quality and most advanced equipment available. Our patients appreciate the thought and effort that goes into adopting new dental technologies, and they also reap the benefits by having more thorough yet less invasive treatments that produce better results!


"Dr. Aaronson was super thorough and thoughtfully answered all of my questions. She has a lactation counselor in the office who can come to help with latching following the procedure, too. Dr. Aaronson is extremely caring and maternal – I’m the crazy person who won’t let anyone hold my baby but felt totally comfortable handing her over. She even has a cozy swaddle so baby is all snuggly for the procedure."

Lauren P.

Contact Us

Please reach out if you have any questions. We'd love to hear from you!

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