- Early childhood caries is tooth decay in children under 6, and it can start as soon as the first tooth appears.
- Frequent sipping and snacking, drinks at bedtime, and too little fluoride are common causes.
- Early white spots can sometimes be stopped with fluoride; larger cavities need fillings, crowns, or nerve treatment.
Early childhood caries is the medical term for tooth decay in babies, toddlers, and preschoolers. It is one of the most common chronic conditions of childhood, and it can begin as soon as the first tooth appears. Understanding what causes it, how to spot it, and how it is treated can help you protect your child's smile.
What is early childhood caries?
Dentists use the term early childhood caries (ECC) when a child under age 6 has one or more baby teeth with decay, including early white-spot lesions that have not yet become holes, or teeth that have been filled or lost because of decay. You may also hear it called baby bottle tooth decay, but bottles are only one of several causes.
Baby teeth have thinner enamel than adult teeth, so once decay starts, it can spread quickly and reach the nerve of the tooth sooner.
What causes it?
Decay happens when bacteria in the mouth feed on sugars and produce acid that weakens tooth enamel. The more often teeth are exposed to sugars, the more time the acid has to do damage. Common contributors include:
milk, formula, juice, or sweetened drinks carried around in a bottle or sippy cup throughout the day.
falling asleep with a bottle or cup of anything other than water, when saliva flow is lower and sugars stay on the teeth longer.
grazing on crackers, dried fruit, or sweets between meals.
fluoride helps strengthen enamel and repair very early decay.
these bacteria can pass from a parent's or caregiver's mouth to a child, for example by sharing spoons or cleaning a pacifier by mouth.
toddlers often resist brushing, and plaque left on the teeth makes decay more likely.
For more on the bottle-related pattern, see our guide to baby bottle tooth decay.
Signs to watch for
near the gumline, often first on the upper front teeth. This is the earliest visible stage.
on the teeth. (Not every dark spot is a cavity; our article on black spots on toddler teeth explains the difference.)
.
such as avoiding chewing on one side.
that does not go away, which can be signs of infection.
Lifting your child's lip once a month to look at the front and back of the upper teeth is an easy way to catch changes early.
Why treating it matters
It can be tempting to think cavities in baby teeth don't matter because the teeth will fall out. But some baby molars stay in place until around age 10 to 12. Untreated decay can cause pain, infection, and trouble eating, sleeping, and speaking. Losing baby teeth too early can also affect the space adult teeth need. Children who have had early childhood caries are also at higher risk for future cavities, so treatment and prevention go hand in hand.
How early childhood caries is treated
Treatment depends on how advanced the decay is:
fluoride varnish, changes to drinking and snacking habits, and close follow-up may stop the decay or help reverse it.
repaired with tooth-colored white fillings.
protected with zirconia crowns or stainless steel crowns.
a pulpotomy or pulpectomy, usually followed by a crown.
gently removed, sometimes followed by a space maintainer to hold room for the adult tooth.
When treatment is done under general anesthesia
Young children with decay on several teeth often cannot sit still through multiple long appointments, and repeated difficult visits can make future dental care harder. For these children, many families choose to have all treatment completed in one visit under general anesthesia. At littleGRINS, this care takes place in a hospital or surgical-center operating room, with a board-certified medical anesthesiologist caring for your child throughout. Children with medical, developmental, or sensory needs can also benefit from this approach; learn more about our special needs dentistry. See what to expect before and after surgery.
How to help prevent it
with fluoride toothpaste: a rice-grain-sized smear for children under 3, and a pea-sized amount for ages 3 to 6. Help your child brush until they can do it well on their own.
Avoid putting your child to sleep with a bottle or cup of milk, formula, or juice.
and offer water between meals.
around your child's first birthday.
and take care of your own teeth, too.
by age 1, or within six months of the first tooth. Ask about fluoride varnish at checkups.
When to call a pediatric dentist
Book a visit if you notice white, brown, or black spots, a chipped or darker tooth, or if your child has tooth pain or trouble eating. Call promptly if you see facial swelling, a bump on the gum, or a fever with tooth pain. If your child's dentist has recommended extensive treatment, request a free consultation with littleGRINS. We'll review the treatment plan and explain how care under general anesthesia works at a location near you.
This article is general information and does not replace an exam by your child's dentist or pediatrician.
Published by the littleGRINS pediatric dental team. This article is general information and does not replace an exam by your child's dentist.