922 Waltham St #202 Lexington, MA 02421

(781) 861-7645

922 Waltham St #202 Lexington, MA 02421

922 Waltham St #202 Lexington, MA 02421

Meet the Doctors

Meet the Doctors Lindsey McElligott, DMD CO2 Laser Release | Lip Tie | Tongue Tie

Dr Lindsey McElligott graduated from Tufts University School of Dental Medicine in 2008. While attending  Tufts, Dr McElligott earned the Tufts Merit Scholarship and was recognized on the Dean’s Honor Roll for her performance on the National Board Examination.  She is an active member of the American Dental AssociationMassachusetts Dental Society, and Spear Education Study Clubs.

Dr McElligott is a native of Anchorage, Alaska. She made her way to the Northeast to attend Wellesley College, from which she graduated in 2003 with a degree in Neuroscience.

She has been practicing restorative and cosmetic dentistry for over 10 years in the Metrowest area. She has a passion for treating young children and having experienced the troubles of a painful latch, gassy baby, sleepless nights, constant spit up with one of her children. Dr McElligott has learned a lot about lip and tongue ties over the years. She has attended the course of Dr Richard Baxter, an internationally renowned laser release of lip and tongue ties expert.

Dr McElligott is thrilled to join Lexington Smile Studio and continue to uphold their high standards of excellence.

She resides in Dover with her husband, three children, and dogs. She is an avid runner and enjoys cooking.

Dr William Negreiros Cosmetic Dentistry | Prosthodontics | Implant Dentistry

Dr. William has been practicing dentistry for over 10 years. He earned his dental degree in São Paulo, Brazil, in 2013. Following graduation, he earned a master’s degree in Dental Materials Sciences and a specialty certificate in Implant Dentistry. He moved to the United States after accepting a two-year fellowship position in Implant Dentistry at Harvard School of Dental Medicine, followed by graduating cum laude from Tufts University School of Dental Medicine.

While at Tufts University, Dr. William was a Dean’s List recipient and earned the “Dr. Joseph E. Primack Endowed Prize in Prosthodontics”, “The International Congress of Oral Implantology Achievement Award”, and the “Academy of Osseointegration Outstanding Research and Best Clinical Research Presentation Awards”. He was inducted as a member of the Omicron Kappa Upsilon honorary society for his high degree of scholarship.

Dr. William’s knowledge is reflected in his extensive publication record, having written, and co-authored over 20 articles on Implant Dentistry and Prosthodontics.

Dr. William is married to an endodontist, Dr. Rachel Monteiro, and they have one child, Benjamin. During his free time, he enjoys playing tennis, fitness training, trying new restaurants, and, most importantly, enjoying quality time with his family. He is fluent in English and Portuguese.


Mario Gatti, DMD, CAGS, FACP Cosmetic Dentistry | Prosthodontics | Implant 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.

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.


Dr. John Govostes Periodontics

Dr. Govostes received his Bachelors of Science degree from the University of New Hampshire and then went to attend Tufts University School of Dental Medicine where he received his dental degree (DMD) and then later his specialty training in periodontology. Dr. Govostes is a Board Certified Periodontist.

Dr. Govostes limits his clinical practice to the field of periodontics which focuses on patient education, as well as the preservation of teeth through various non-surgical and surgical therapy modalities in the treatment of gum diseases (periodontitis), as well as implant dentistry and the treatment of other oral pathologic conditions associated with the mouth. The various services offered, but not limited to, include: reduction of gingival pocketing, cosmetic correction of recession and reconstruction with various gum grafting techniques, removal of hopeless teeth, replacement of missing or hopeless teeth with dental implants, as well the augmentation of bone, which is often times needed for future dental implant placement.

Dr. Govostes is a member of the American Academy of Periodontology, the Massachusetts Society of Periodontics, the Massachusetts Dental society, as well as a member of Delta Sigma Delta organization which is an International Dental Fraternity. Dr. Govostes has served the public by working in community dental clinics in Colorado, as well as volunteering for dental missions to Quito, Ecuador where he treated the underprivileged community. He also serves as a guest lecturer at the Yankee Dental Convention in Boston, MA. Dr. Govostes concerns himself with his patient’s comfort, relaxation, and education as well as the quality of care he provides.

Meet the Hygienists

Jalila, 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.

Lucy, R.D.H

Lucy received her Bachelor’s degree from the Forsyth School of Dental Hygiene of  MCPHS University in 2016. Immediately after college, it was through her patient experience that she grew to love the field even more as she was able to develop her skills and relationships with patients. She strives to educate her patients of all ages about their oral health status in a friendly, and encouraging way. Her top priority is to make sure that their experience in her chair is as pleasant as can be, while helping them keep their beautiful and healthy smiles. Apart from work Lucy enjoys painting, baking, cycling, practicing yoga and spending time outdoors with friends and family. 

Meet the Dental Assistant

Brianna, Dental Assistant

Brianna has been a dental assistant and working with us since 2012. She is passionate about what she does and makes the patients feel like they are at home.  She loves seeing the life changing improvements on the lip and tongue tie patients. She enjoys making people laugh and always brightens the room. In her free time she enjoys spending time with friends and family and pampering herself.

Meet the Front Desk

Elizabeth, Front Desk Coordinator 

Elizabeth has over 10 years of customer service experience. She is the friendly face greeting you at the door with a bottle of Purell in hand. She loves interacting with the patients and working alongside the staff every day. In her free time she enjoys spending time with friends, watching movies and brunch.

Erika, Front Desk Coordinator 

Erika has 20 years of experience with dental customer service. She can help you with scheduling an appointment to explaining your dental coverage to you. She is fluent in Spanish and grew up in the neighboring town of Waltham. She enjoys spending time with her 3 children and loves watching them in all of their extracurricular activities.

Meet the Office Managers

Marianna, Office Manager

Marianna has 36 years of experience in the dental field.  As she oversees the office’s day to day operations, her goal is to make sure each patient receives the personalized and individual attention they deserve.  During her spare time, she enjoys spending time and entertaining family and friends with her traditional Italian cooking.

Pamela, Assistant Office Manager 

Pamela is originally from Lebanon and is fluent in Arabic, French and English. She is compassionate and loves to help people. She is always going above and beyond for our patients by working with their insurance companies to make sure they can get whatever treatments they may need. In her spare time she likes going on hikes, spending time with friends and family and traveling.

Contact Us

922 Waltham St #202 Lexington, MA 02421, USA

Phone: +1 781-861-7645

Fax: +1 781-240-0264

Operating Hours

Monday: 8:00am-6:00pm

Tuesday: 8:00am-5:00pm

Wednesday: 8:00am-6:00pm

Thursday: 8:00am-5:00pm

Friday: 8:00am-5:00pm

Saturday: 8:00am-2:00pm

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