Oakdale

Oakdale's trusted pediatric dentist for Long Island families

Serving children and teens across Oakdale, Sayville, Bohemia, Patchogue, and beyond — with a seamless, anxiety-free experience from the very first visit.

Don't just take our word for it

Families across Long Island love Smile First

Joanna T.

My husband and I took our daughter for her very first dental visit today—she’s 2—and after how brushing her teeth goes at home, I was honestly dreading it. From the moment we walked in, though, she (and therefore we) felt completely comfortable. The front desk staff was so welcoming and friendly, the wait time was minimal, and Dr. Tran was absolutely amazing with her. The visit was quick, gentle, and very informative. I’m so happy with our choice and feel confident knowing our daughter is in the best hands. Can’t recommend enough!

Amanda F.

I would highly recommend this office for pediatric dental care! My daughter needed oral surgery and has sensory sensitivities and anxiety, but the entire team was incredibly kind, patient, and understanding. They saw us the same day I called and made the whole experience smooth and stress-free. We felt supported every step of the way. We’re so grateful we found Smile First—we’ll definitely be continuing her care here! Thank you to the entire team for such exceptional care.

Estefania N.

Dr. Tran is amazing! I brought both of my sons here and it was truly a great experience. He is patient, gentle, and really knows how to make kids feel comfortable and at ease. The staff was friendly and welcoming, and the office is clean and well-organized. As a parent, I truly appreciate the care and attention my children received. Highly recommend Dr. Tran to any family looking for a trustworthy and compassionate pediatric dentist!

Maida C.

I am absolutely amazed by how wonderful, friendly and professional everyone at this office is. I have been bringing my 3 kids here from day one, and I would not want to go anywhere else. Beautiful clean office. I have not had any issues with appointments. Everyone is very accommodating. Love love love.

Minh L.

Great experience with Dr. Tran and the team at Smile First! Everyone was so nice and patient with our family. They took the time to explain everything to us and the scheduling process was so smooth. Highly recommended for any families with young ones!

Four dedicated providers. One dental home your family can trust.
Dr. Viet Tran, Dr. Gabrielle Fusco, Dr. Erin Diamantakis & Dr. Ally Sullivan

Our Oakdale team is led by Dr. Viet Tran, a pediatric dentist with over 14 years of experience, a DMD from Boston University School of Dental Medicine, and advanced pediatric training at Stony Brook University Hospital — where he continues to serve as Clinical Assistant Professor. Dr. Tran founded Smile First with a clear mission: to eliminate dental anxiety by establishing a dental home early and creating an experience that families genuinely look forward to. Alongside him, Dr. Gabrielle Fusco and Dr. Ally bring compassionate, patient-paced pediatric care to every visit, while Dr. Erin Diamantakis serves as our in-house orthodontist — meaning your child can receive everything from their first cleaning to braces or Invisalign all under one roof, with a team they already know and trust.

What makes Smile First different

A pediatric dental experience designed around your child — not the other way around

At our Oakdale practice, every detail has been intentionally designed to reduce anxiety, build trust, and make dental care something children feel proud of. From the first phone call to the final prize at the end of the visit, we've built a practice where kids feel safe, parents feel informed, and families keep coming back — not because they have to, but because they want to.

A seamless experience from the first call

Our team is trained to make scheduling easy, set clear expectations, and verify your insurance benefits before your appointment, so there are no surprises when you arrive. We use trust transfers throughout every visit to make sure your child is never left unattended or unsure of what comes next.

Advanced technology for more accurate care

We use Overjet AI-powered radiograph analysis and iTero digital scanning to give our doctors a clearer, more precise picture of your child's oral health. This means more accurate diagnoses, more transparent conversations with families, and better-informed treatment planning from day one.

In-house orthodontics

With Dr. Erin on our team, families never have to choose between their pediatric dentist and an orthodontist. We offer Phase 1 early interceptive treatment, Invisalign, traditional braces, ceramic braces, and space maintainers, all coordinated directly with your child's ongoing preventive care.

Sedation options for anxious patients

We offer nitrous oxide and IV/general anesthesia with full OR privileges, making us one of the few pediatric practices on Long Island equipped to care for highly anxious patients, special needs patients, and complex cases in a safe, supportive environment. No child is turned away because their needs are too great.

Everything your child needs, all in one place

From first-tooth cleanings to orthodontics and sedation, we offer comprehensive pediatric dental care designed to grow with your child.

Pediatric preventive dentistry

Regular cleanings, fluoride treatments, digital X-rays, and dental sealants help protect your child's smile from the very first visit and build the healthy habits that last a lifetime.

Special needs dentistry

We proudly offer sensory-friendly appointments, infant dentistry, and a fully judgment-free environment for children who need extra patience, flexibility, or specialized care.

Children's orthodontics

Our in-house orthodontist offers everything from Phase 1 early interceptive treatment and space maintainers to Invisalign and traditional braces — so your child's orthodontic care stays connected to the team they already trust.

Pediatric dental emergencies

When something unexpected happens, we're here — offering same-day appointments and Saturday availability so your child gets the care they need without the wait.

Take a look around

Our Oakdale office is designed to feel cheerful, comfortable, and completely kid-friendly — from the moment you walk in to the moment your child picks their prize from the vending machine on the way out. We've thought about every detail so your family feels at home.

Easy to find, easy to get to

Our Oakdale office is conveniently located on Montauk Highway with straightforward access for families throughout Oakdale, Sayville, Bohemia, East Islip, and Patchogue.

On-site parking available

Conveniently located on Montauk Hwy with easy highway access

Welcoming families from Oakdale, Sayville, Bohemia, Patchogue, Centereach, and surrounding communities

Online scheduling available 24/7 through our CareStack patient portal

Keeping great care within reach

We work with most major PPO insurance plans and verify your benefits before your appointment so there are no unexpected costs at checkout.

Insurance: We are in-network with Delta Dental, Cigna Dental, MetLife Dental, Guardian Dental, UnitedHealthcare Dental, and Blue Cross Blue Shield Dental, and we accept many additional PPO plans.

Financing: We offer Cherry financing for treatment plans over $1,000 and in-house payment plans for smaller balances — because we never want cost to stand between your child and the care they need.

Ready to give your child a dental home they'll love?
Scheduling is easy — book online anytime or give our Oakdale team a call and we'll take care of the rest.