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922 Waltham St #202 Lexington, MA 02421


Lexington Smile Studio will reopen on May 18th, 2020 for dental visits.
If you have an upcoming appointment, please do not call to reschedule. One of our staff will be reaching out to you shortly.


Meet the Doctors


Fawn Rosenberg, DMD, FAGD

CO2 Laser Release | Lip Tie | Tongue Tie

Fawn Rosenberg, DMD, FAGD | CO2 laser lip and tongue tie release dentist | lip tie | tongue tie | co2 laser release

CO2 Laser Release | Lip Tie | Tongue Tie

Dr. Fawn Rosenberg is a Lexington cosmetic and CO2 laser lip and tongue tie release dentist. She has delivered excellent service for patients of Lexington MA for more than 27 years. Dr. Rosenberg utilizes her continuing education and up-to-date dental technology to offer you the best care. Her team is welcoming and always eager to assist you and your dental needs. Speak to us today about CO2 laser release, lip tie condition, tongue tie condition, and cosmetic dentistry.


Dr. Fawn Rosenberg graduated from Tufts University School of Dental Medicine in 1985. She has since become one of Lexington’s most sought after cosmetic dentist and lip and tongue tie doctor for CO2 laser release.

Periodontal Laser Gum Therapy
Nickelodeon Parents’ Pick award for Best Dentist for Children in Boston
“A” Rating Honors Roll on Angie’s List

Fellowship Award, Academy of General Dentistry


She is an active member of the Academy of Breastfeeding Medicine, International Association of Tongue Tie Professionals, and International Consortium of Oral Ankylofrenula Professionals.


Mario Gatti, DMD, CAGS, FACP

Cosmetic Dentistry | Prosthodontist | Restorative Dentistry

MARIO GATTI, DMD, CAGS, FACP CO2 Laser Lip and Tongue Tie Release Dentist

Cosmetic Dentistry | Prosthodontist | Restorative Dentistry

Dr. Mario Gatti is a Board Certified Prosthodontist with a strong background in comprehensive, surgical implant and esthetic dentistry and over twenty years of advanced clinical experience. He received his DMD and Post-Graduate degree in Prosthodontics from Tufts University in 2000 and 2007 respectively. Dr. Gatti obtained his Fellowship in Advanced Education in Esthetic Dentistry in 2008 from Tufts University. In 2010, he completed a Fellowship in Surgical Implantology from New York University College of Dentistry. During his time at NYU, he studied the surgical aspect of implant dentistry from world-renowned surgeons.

Dr. Gatti is a Diplomate of the American Board of Prosthodontics, and a Fellow of both the American College of Prosthodontists and the Greater New York Academy of Prosthodontics. In addition, Dr. Gatti is an assistant clinical professor at Tufts University in the Department of Post-Graduate Prosthodontics and a former President of the American College of Prosthodontists Massachusetts Section.

MARIO GATTI, DMD, CAGS, FACP CO2 Laser Lip and Tongue Tie Release Dentist

As a dedicated prosthodontist, Dr. Gatti gives his patients his total focus to provide an excellent dental restoration experience. For Dr. Gatti, it’s critical that his patients feel comfortable and have a positive experience while in his care.

Dr. Gatti is originally from the Lake Como region near Milan, Italy. He currently resides in Concord, MA, with his wife Emily, and their three children Anna, Elena and Nico. He enjoys cooking, soccer, traveling and rooting for our Boston sports teams. He is fluent in Italian and Spanish.



Charles R. Braga DMD, M.M. Sc.


Dr. Charles Braga graduated magna cum laude from Boston University with degrees in Biology and French. He then went on to graduate magna cum laude from the Harvard School of Dental Medicine (D.M.D.) in 1994 and then completed a residency program in Periodontics at Harvard in 1996, during which he earned his Master of Medical Sciences Degree (M.M.Sc.) magna cum laude. He is an elected member of the Omicron Kappa Upsilon National Dental Honor Society, Alpha Omega, and the American Academy of Periodontology. During his residency, he was a clinical instructor in Periodontology for Harvard University’s International Program in Dentistry.
Dr. Braga continues to teach as a LANAP trainer with the Institute for Advanced Laser Dentistry. He is a lecturer and seasoned veteran in the use of ND:Yag Dental Lasers and the LANAP Protocol. Dr. Braga is also certified in the use of carbon dioxide and diode lasers. Additionally, Dr. Braga was a former researcher in microbially-derived bioplastics and new drug development. Dr. Braga has been certified and has extensive experience with all types of implants. He enjoys all aspects of Periodontics, Dental Laser Science, and Dental Surgery and strives to provide consistent, predictable results.
Dr. Charles Braga, Born: 6 June 1967, Fall River, Massachusetts
B.A. Biology, French, 1989, Magna cum Laude, Boston University
D.M.D., 1994 Magna cum Laude, Harvard University
M.M.Sc., (Master of Medical Sciences) 1996, Harvard University
Certificate in Periodontology 1996 Harvard University
Currently Residing in Newmarket New Hampshire
Certified Instructor: 2004-Present Institute for Advanced Laser Dentistry
Former instructor in Harvard’s International Program
in Dentistry.
Research experience in new drug development, biostatistics,
and biopolymer chemistry for the Department of the Army.
Experienced in the use of Nd:YAG, Diode, and Carbon Dioxide medical lasers.
Dr. Braga enjoys Travel, Computing, Automotives, and Politics

Meet the Hygienists

Lunie Cazeau, RDHLunie Cazeau, RDH

Lunie received her dental hygiene degree from the University of South Florida State Collage in 2008. Lunie left the sunshine state and joined our team at Lexington Smile Studio in 2012. She enjoys her time with patients and always aims to provide them with a pleasant dental hygiene experience. In Lunie’s spare time she enjoys cooking, dancing, reading, exercising and traveling.




Eileen Robertson, RDHEileen Robertson, RDH

Eileen graduated from Middlesex Dental Hygiene School in 2001. She excelled with awards in Patient Care and Clinical Treatment. Eileen has 29 years of dental experience in the field with both a background in Dental Assisting and Dental Hygiene. She is very passionate about dentistry and helping patients achieve better oral health. Eileen enjoys many activities those that include spending time with her family, traveling, cooking and attending Boston sports team events.

Jalila Green, RDH

A native of Morocco, Jalila graduated from Mount Ida College in Dental Hygiene in 2006 and Bachelors in Fine Art in 2008. As a registered dental hygienist, Jalila is experienced in treating both pediatric and adults patients. She enjoys all aspects of hygiene care and she’s skilled in educating patients regarding clinical procedures and overall dental health. Jalila is fluent in English, French, and Arabic.