Once Upon a Tooth

Once Upon a Tooth Dr. Lis - Board Certified Pediatric Dentist. Minimally invasive, mindful, gentle dentistry for kids.

Welcome to Once Upon a Tooth, the premier pediatric dentist in Eastchester, NY. Our practice is led by board-certified pediatric dentist Dr. Lisneida “Lis” Arjona, who is dedicated to providing top-quality dental care for children of all ages. Kids require specialized care, and we strive to create a welcoming and friendly environment where children can feel comfortable and safe during their dental

visits. We offer preventative dentistry such as regular checkups, cleanings, and fluoride treatments to keep your child’s teeth healthy and strong. We also offer restorative dentistry services such as fillings and crowns to repair any damage or decay that may occur.

06/23/2026

Dental checkups are about so much more than cleaning teeth. 💚

Regular visits help us monitor your child's growth and development, catch concerns early, and provide guidance that supports healthy habits at home.

At Once Upon a Tooth, we believe prevention is one of the most important parts of pediatric dental care. By focusing on early detection, education, and positive experiences, we can help reduce the risk of cavities and other common dental problems before they start.

Our goal is simple: to help every child build a healthy smile and a positive relationship with dental care that lasts a lifetime. 🪥✨

📍 Eastchester, NY
📞 914-348-4348
🌐 www.onceuponatooth.com

Happy Father's Day to all the dads and father figures who help kids feel brave. 💚Some dads turn brushing teeth into a da...
06/18/2026

Happy Father's Day to all the dads and father figures who help kids feel brave. 💚

Some dads turn brushing teeth into a dance party. Some calm nerves with a reassuring smile. Some are the planners, the coaches, the storytellers, or the ones who always know how to make everyone laugh.

At Once Upon a Tooth, we love seeing those special relationships during visits and the unique ways dads show up for their children every day.

Thank you for the patience, encouragement, humor, and love you bring to your families. The confidence you help build reaches far beyond the dental chair.

Wishing all the amazing dads and father figures a very Happy Father's Day. 🪥✨

📍 Eastchester, NY
📞 914-348-4348
🌐 www.onceuponatooth.com

06/16/2026

Have you ever heard your child grinding their teeth while they sleep? 😬💚

Teeth grinding, also called bruxism, is common in children and often happens during periods of growth and development. In many cases, children outgrow it on their own.

That said, frequent grinding can sometimes lead to tooth wear, jaw discomfort, or disrupted sleep, which is why it's a good idea to mention it at your child's dental visit.

At Once Upon a Tooth, we take a close look at your child's teeth, bite, and overall development to make sure everything is progressing as it should.

If you've noticed grinding, you're not alone—and we're always happy to answer questions. 🪥✨

📍 Eastchester, NY
📞 914-348-4348
🌐 www.onceuponatooth.com

At Once Upon a Tooth, putting kids first means more than providing great dental care. 💚It means creating an environment ...
06/11/2026

At Once Upon a Tooth, putting kids first means more than providing great dental care. 💚

It means creating an environment where children feel comfortable, supported, and excited to learn about their smiles. From our welcoming spaces to our gentle, child-centered approach, every part of the experience is designed with kids in mind.

We also believe education is an important part of lifelong oral health. By teaching children age-appropriate dental habits early and partnering with parents along the way, we help build the confidence and routines that support healthy smiles for years to come.

Because when children feel safe and empowered, positive dental experiences can last a lifetime. 🪥✨

📍 Eastchester, NY
📞 914-348-4348
🌐 www.onceuponatooth.com

06/09/2026

At Once Upon a Tooth, our mission is to provide state-of-the-heart dental care for children of all ages and abilities. 💚

To us, that means more than caring for teeth. It means supporting families, building trust, and creating positive experiences that help children feel safe, respected, and confident.

We believe in evidence-based, minimally invasive dentistry, with a strong focus on prevention and education. Because lifelong oral health begins with healthy habits, and healthy habits begin with understanding and encouragement.

As parents ourselves, we know it takes a village to raise a child. We're honored to be part of yours. 🪥✨

📍 Eastchester, NY
📞 914-348-4348
🌐 www.onceuponatooth.com

Cavities don't always cause pain right away. 💚While some children experience sensitivity, discomfort, or visible spots o...
06/04/2026

Cavities don't always cause pain right away. 💚

While some children experience sensitivity, discomfort, or visible spots on their teeth, others may have cavities with no noticeable symptoms at all.

That's why regular dental visits are so important. At Once Upon a Tooth, we use low-dose digital X-rays when needed to help detect cavities early, often before they become larger and more difficult to treat.

Early treatment helps protect your child's comfort, oral health, and developing smile. Because when concerns are caught early, care can often be more conservative and less stressful for everyone. 🪥✨

📍 Eastchester, NY
📞 914-348-4348
🌐 www.onceuponatooth.com

06/02/2026

One of the most common questions parents ask is: "Does my child really need dental visits every six months?" 💚

For most children, the answer is yes.

Regular checkups do much more than clean teeth. They help prevent cavities, monitor growth and development, reinforce healthy habits, and create positive experiences that can reduce dental anxiety over time.

Whether you have a toddler, school-age child, or teenager, routine preventive care plays an important role in your child's overall health and well-being.

👉 Read our latest blog to learn why six-month visits matter and how they help support healthy smiles for life:
https://www.onceuponatooth.com/post/how-often-should-kids-visit-a-pediatric-dentist-in-eastchester-ny

📍 Eastchester, NY
📞 914-348-4348
🌐 www.onceuponatooth.com

Orthodontic screenings are about more than braces—they help us monitor how your child’s smile is growing and developing ...
05/28/2026

Orthodontic screenings are about more than braces—they help us monitor how your child’s smile is growing and developing over time. 💚

During your child’s visit, we look at tooth alignment, bite, jaw growth, facial development, and oral habits that may affect future dental health.

Sometimes early guidance or interceptive treatment can reduce the need for more complex orthodontic care later on. Other times, we simply continue to monitor growth and recommend the right timing for future orthodontic care if needed.

At Once Upon a Tooth, our goal is always to support healthy development with thoughtful, child-centered care. 🪥✨

📍 Eastchester, NY
📞 914-348-4348
🌐 www.onceuponatooth.com

05/26/2026

When a baby tooth is lost too early, the surrounding teeth can start to shift into the open space. 💚

Over time, this may affect how permanent teeth come in and could lead to crowding or alignment concerns later on.

That’s where space maintainers help. These small, custom-made appliances hold space for adult teeth while your child’s smile continues to grow and develop.

At Once Upon a Tooth, we provide child-friendly space maintainers designed to be comfortable, functional, and supportive of healthy smile development. 🪥✨

📍 Eastchester, NY
📞 914-348-4348
🌐 www.onceuponatooth.com

Baby teeth may be temporary—but their impact lasts much longer than most parents realize. 💚They help children speak clea...
05/21/2026

Baby teeth may be temporary—but their impact lasts much longer than most parents realize. 💚

They help children speak clearly, chew comfortably, and guide adult teeth into the right position as they grow. When baby teeth are lost too early, it can sometimes lead to crowding, bite issues, and future orthodontic concerns.

That’s why protecting baby teeth is such an important part of your child’s overall health and development.

At Once Upon a Tooth, we focus on prevention, education, and gentle care to help growing smiles stay healthy from the very beginning. 🪥✨

📍 Eastchester, NY
📞 914-348-4348
🌐 www.onceuponatooth.com

Address

266 White Plains Road, Suite 1C
Eastchester, NY
10709

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Telephone

+19145561961

Website

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