Cavity Prevention in Antioch, California

What Are Cavities and How Do They Form?

Dental cavities, also known as tooth decay, are one of the most common chronic conditions in children, but they’re also highly preventable. Understanding how cavities form can help you take simple steps to protect your child’s smile from the very start. Cavities happen when sugars from food and drinks feed bacteria in the mouth. These bacteria produce acid, which slowly breaks down the tooth’s protective outer layer (enamel). Once dental decay reaches the inner layer of the tooth, intervention is likely required.

Why Children Are at Higher Risk for Tooth Decay

• Their enamel is thinner than adults.

• They often snack frequently.

• Oral hygiene can be inconsistent, especially in younger children.

Even natural sugars like those found in formula, cow’s milk, breast milk, and fruit pose a risk to form cavities.

How Milk or Breastfeeding At Night Affects Baby Teeth

• Breast milk and cow’s milk contain natural sugars.

• When a child falls asleep while nursing or bottle-feeding, milk can pool around the teeth and sit there for hours.

• This creates an ideal environment for bacteria to produce acid, especially once teeth have erupted.

Top recommendation: Once teeth come in, avoid nursing or bottle-feeding right before bed or during the night unless you clean your child’s teeth after.

Juice and Its Impact on Children’s Dental Health

• Juice contains high levels of sugar and acid, even if it’s “100% juice.”

• Sipping juice throughout the day or taking it to bed increases the risk of decay — especially on the front teeth.

Top recommendation: Avoid juice for infants under 1 year. Limit to 4 oz/day for toddlers (ages 1–3), and always offer it in a cup — not a bottle or sippy cup that encourages prolonged sipping.