Putting Kids First, One Smile at a Time
Welcome to Once Upon a Tooth, where board-certified pediatric dentist Dr. Lisneida "Lis" Arjona provides compassionate, personalized dental care for infants, children, and teens.
From first dental visits to preventive care and restorative treatments, we're here to help every child feel comfortable, confident, and cared for.
Gentle Pediatric Dentistry for Every Stage of Childhood
At Once Upon a Tooth, we believe children deserve dental care that respects their individual needs, personalities, and stages of development.
Led by Dr. Lis, our Eastchester practice emphasizes prevention, education, and minimally invasive treatment whenever appropriate. We take time to build trust, answer questions, and help every child feel comfortable throughout their visit.
Whether you're scheduling your baby's first appointment, establishing routine care, or looking for a dentist who understands dental anxiety, we're here to help.
We welcome families from Eastchester, Tuckahoe, Bronxville, Mount Vernon, New Rochelle, Yonkers, and surrounding Westchester communities.
Our Mission: Putting Your Child First
Our mission is to provide thoughtful, evidence-based pediatric dental care that supports every child's health, confidence, and well-being.
We combine prevention-focused dentistry with an understanding of each child's developmental and emotional needs. Through education, patience, and individualized care, we help families establish healthy habits and positive relationships with dental care.
Why this works: It reinforces the practice's philosophy without repeating language already used in the introduction.
Pediatric Dental Services in Eastchester, NY
From routine checkups to treating cavities and dental injuries, Once Upon a Tooth offers comprehensive pediatric dental care designed around your child's needs.

A Positive Dental Experience Starts Here
Every child experiences dental visits differently. Some arrive excited and curious, while others need extra time to feel comfortable.
Dr. Lis and our team adapt their approach to each child, using age-appropriate explanations, patience, and encouragement to build trust.
From our child-friendly environment to our individualized treatment approach, we work to make dental visits something children and parents can feel good about.
Child-Driven Dental Care for Every Age
Children's dental needs change as they grow. Our approach considers each child's oral development, comfort, and ability to participate in their care.
From the first tooth through the toddler years, we focus on early development, healthy feeding and brushing habits, cavity prevention, and helping young children become familiar with dental visits.

Welcoming New Patients
Choosing a pediatric dentist is an important decision. Whether you're preparing for your child's first dental visit or transitioning from another practice, we want your family to feel informed and comfortable.
During your child's first appointment, Dr. Lis will review their dental development, address your concerns, and recommend care based on their individual needs.
Our team can also help you understand what to expect, review insurance participation, and discuss available payment options before your visit.
Parent Reviews

Frequently Asked Questions About Pediatric Dentistry
When should my child first see a pediatric dentist?
The American Academy of Pediatric Dentistry recommends a first dental visit when the first tooth appears and no later than the first birthday. Early visits help parents understand dental development, preventive care, and healthy habits.
What makes a pediatric dentist different from a general dentist?
Pediatric dentists complete additional specialty training focused on children's oral health, growth, development, and behavioral needs. Dr. Lis is a board-certified pediatric dentist who provides care tailored to each stage of childhood.
Does Once Upon a Tooth accept dental insurance?
We work with several major dental insurance plans and offer payment options. Contact our office to verify current participation, discuss benefits, and learn about available payment arrangements.



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