Welcome to Smile First Pediatric Dentistry
Your trusted pediatric dentist serving Long Island families
across Oakdale, Rocky Point, and East Quogue
At Smile First Pediatric Dentistry, we believe every child deserves to grow up proud of their smile. From your very first phone call to the moment your little one picks a prize from our vending machine on the way out, we've built every step of the experience around one goal: making the dentist a place your child actually wants to come back to. Serving families across Oakdale, Rocky Point, East Quogue, and the surrounding Long Island communities, we offer kid-centered, anxiety-reducing care backed by advanced technology and a team that genuinely loves what they do.
Meet the Smile First team
Care you can trust from Dr. Viet Tran, Dr. Gabrielle Fusco, Dr. Erin Diamantakis & Dr. Ally Sullivan
Smile First was founded by Dr. Viet Tran, a pediatric dentist with 14 years of experience who built this practice on a simple but powerful idea: every child deserves a dental home that feels safe, welcoming, and even joyful. Joined by pediatric dentists Dr. Gabby and Dr. Ally and in-house orthodontist Dr. Erin, our team brings together decades of specialized training, genuine warmth, and a shared belief that a positive dental experience in childhood can change the way someone feels about their health for life. Together, we're united by one goal: to change the narrative about dentistry for kids and families, one visit at a time.

Everything your child needs, all under one roof
Pediatric preventive dentistry
Building healthy habits early is the best gift you can give your child's smile, and our preventive care is designed to do exactly that. From first-tooth cleanings and fluoride treatments to digital X-rays and dental sealants, we make every routine visit a positive, comfortable experience that keeps your child excited about their oral health.
Children's orthodontics
With an in-house orthodontist on our team, your child can move seamlessly from their dental checkup to orthodontic care without ever leaving the practice they already know and trust. We offer everything from early interceptive treatment to Invisalign and traditional braces.
Special needs dentistry
Every child deserves exceptional dental care, and we're proud to be a judgment-free, anxiety-focused practice with real options for patients who need extra support. Our team is experienced in sensory-friendly dentistry, sedation options, and hospital dentistry to ensure every patient feels safe, respected, and cared for.
What sets us apart
We didn't just build a dental practice — we built a better experience.
Every detail at Smile First has been thoughtfully designed to make dentistry easier, less scary, and more meaningful for the children and families we serve. From the moment you call our office to the moment your child picks their prize on the way out, our team is intentional about every step, because we know that a great first experience can shape how your child feels about their health for the rest of their life.

In-house orthodontics and general anesthesia
Having an in-house orthodontist and in-house general anesthesia services means your child's full scope of care stays under one roof, with providers who already know your family. No referrals to strangers, no starting over.
Advanced technology you can trust
We use Overjet AI-powered analysis and iTero digital scanning to give our doctors a clearer picture of your child's oral health, which means more accurate diagnoses, better treatment planning, and fewer surprises for your family.
A seamless experience from the first call
Our team is trained to make scheduling easy, set clear expectations, and verify your insurance benefits upfront so there are no surprises at checkout. From the first phone call to the final appointment, you'll always know what to expect and what comes next.
A signature welcome for every new patient
Every new patient gets a Polaroid photo taken at their first visit, plus a handwritten thank-you note mailed to their home, because we want your child to know, from day one, that they're part of our family.

New patient special
Give your child a great start
at a price that works for your family
We're proud to offer a simple, affordable new patient special designed to help you explore our practice and get your child's oral health on track. Whether your little one is coming in for the very first time or you're just looking for a practice that feels right, this is a great opportunity to experience the Smile First difference.
$119 exam for children 4 and under
$169 exam for children 5 and older (includes X-rays)
Same seamless, high-quality care — every visit
New patient special is available for new patients only and may not be combined with insurance billing or other offers. Contact our office for details.





