About Us

At Sayville Family Dentistry, we pride ourselves on providing top-notch dental care for the whole family. Our experienced team is dedicated to ensuring your oral health and helping you achieve a beautiful smile. We offer convenient same-day appointments and walk-ins are always welcome.

Dr. Sandhya Udeshi

(Doctor of Dental Surgery)

With more than two decades of dedicated practice on the South Shore of Long Island, Dr. Udeshi has honed her passion for patient care and education. Raised in a close-knit community with healthcare-focused parents, her journey naturally led her to a fulfilling career in dentistry.

In 2002, Dr. Udeshi earned her Doctor of Dental Surgery degree from New York University College of Dentistry, distinguishing herself with Honors and membership in the Omicron Kappa Upsilon Honor Society. Over the years, she has consistently pursued excellence, enriching her expertise through continuous education in dental implants and cutting-edge technology.

Dr. Udeshi remains an active and esteemed member of prominent dental associations, including the American Dental Association, New York State Dental Association, Suffolk County Dental Society, and the American Academy of Implant Dentistry.

Beyond her professional achievements, Dr. Udeshi and her husband have called Long Island home for over 25 years, raising two children and cultivating a vibrant life. Her interests extend to spending quality time with her family, exploring her culinary talents, embarking on adventures in the Adirondacks, and actively engaging in philanthropic endeavors, particularly in support of Oral Cancer and Alzheimer’s research.

Our Team

Tammy Vilatoro

Dental Assistant

I have worked at Sayville Family Dentistry for 5 years. I have 23 years of dental assisting experience. I grew up and currently live in West Sayville with my husband and two kids. My hobbies include spending time with my family, vacationing, video games, and collecting unicorns. I’m looking forward to meeting you at our practice!

Kay Mertens

Dental Hygienist

I have been part of the Sayville Family Dentistry family for nearly 30 years. I appreciate and cherish the trusting relationships that I have built with our patients over this time. In my free
time, I enjoy spending time with my husband and 2 adult sons. I love decorating my home and taking road trips, especially to the peaceful country-side of Lancaster, Pennsylvania.

Maryori Carmona

Front Desk Coordinator & Assistant

I have been working at Sayville Family Dentistry as an assistant for 2 years. Working here I got to know more about the Dental Field. Outside of work Ilike to draw and paint while hanging out with my sisters.

Theresa Manachi

Front Desk Coordinator & Assistant

I have 30 years experience with Dental and I’m glad I had made the choice to go into this field. I love meeting new people and forming work relationships with existing patients. I love my job and the people I work with.

Latest Techniques

Latest Techniques

We will deliver excellence in diagnostics, restorative and preventative dentistry using the latest proven materials, equipment and techniques.
Latest Techniques



We provide quality oral health care using the latest dental technology. By using the cutting edge research and tools, we make sure your time with us is as comfortable and stress-free as possible.
Certified Experts

Certified Experts

Our team has the professional experience to realize that there is no such thing as one-size-fits-all treatment, and so we never use a one-size-fits-all approach to your dental plan.

Our Clients Reviews

Sayville Family Dentistry has been taking care of my teeth for many years now and I can honestly say that they have provided excellent care in a friendly manner. We go every 6 months & I recently had a checkup last week. Doctor Udeshi & Hygienist Kay Mertens know their business and have provided all my dental care without trying to push me into unnecessary procedures, I totally trust their recommendations to be what I need & their work is top notch. My wife and myself highly recommend their practice for your dental care.


– Wes

Best dentist..Im 59 yrs old and been to a few dentists.. Always happy people working their. She does excellent work.. Had a tooth ache on a saturday night.. Called emergency number 8am sunday morning.. She answered promptly and directed me what to do about it and called in a perscription.. My dad also goes to her… Can’t say enough good things…


– Bill Elia

I see Dr. Udeshi twice a year for check ups, she is friendly and knowledgeable as she answers all my questions on my teeth issues. I am very satisfied with the work she has preformed on my teeth. The dental hygienist, Kay, has been cleaning my teeth for years, she goes out of her way to insure you are as pain free while your cleaning teeth. If you want to keep you teeth, all you have to do is follow her advice. I did and as a senior I still have my teeth for over 15 yrs. Kay has a wonderful personality; she is kind, friendly and non- judgmental. I look forward to my appointments with her.


– Joy

I had the best dental experience ever . I’m a dentist and I’m a super phobic.
I ended up fracturing a tooth and Dr. Udeshi fixed it. It was a completely painless experience. Very friendly staff and an efficient dentist made it a pleasant experience.
I would only trust Dr. U with my teeth!
Highly highly recommend .


– Monika Bhatia

Dr udeshi is fantastic. She will actually drop whatever she’s doing to make sure you get the help you need. I will recommend her to all my family and friends


– Vito Cardone

Dr. Udeshi is outstanding! Kay, the hygienist is fantastic. The entire staff are professional and so nice! (I was there on 6/22/21, I don’t know everyone’s names yet). They go out of their way to make you comfortable and help you. I highly recommend Sayville Family Dentistry. This practice is a little jewel in Sayville.


– Donald Johnson

Would highly recommend. Very caring and professional staff. Everything is explained in detail.
I have been using this practice for over thirty years.
Kay is the best! Dr. Udeshi is exceptional!


– Susan Rotundo

I’m so happy I found this practice. They took care of all mine and my husbands dental needs in a clean and professional office. All the staff makes you feel very comfortable, I would not go anywhere else !!


– Alison Bregenzer

Very professional and caring staff. They are following the CDC guidelines to the max and I felt comfortable and safe during my recent appointment.


– Barbara Braun

We have gone to Sayville Family Dentistry. We have received excellent care from a highly professional and friendly staff . They also give excellent instruction to maintain good dental health.


– John Boughal

Dr. Sandhya Udeshi, Kay and her team are committed to providing the best in preventative, restorative, Implant and cosmetic dentistry.
My Family has been using them for the past several years. I have required extensive complex dental work which among others included a bridge to multiple front upper teeth. Having a severe overbite I had been told by another dentist that this could not be done. Understanding its complexity she referred me to consider other Dental/surgical options. After fully explaining my options and providing informed consent she completed this procedure approximately 2 years ago and I have had an excellent cosmetic as well as functional result that greatly exceeded my highest expectations. Dr. Udeshi has a fine educational background and in addition to being very bright has excellent fine motor skills. She also puts the best interest of her patients above her own.

In summary, I am not a friend or family member of anyone from this team and highly recommend them without reservation.
Kevin Roden, PT, OCS


– Coram Physical Therapy

Smile Gallery

“What your future smile can look like