How to Prevent and Treat Cavities in Children: A Parent’s Guide

Cavities are one of the most common—and preventable—dental problems in children. At Campbell Pediatric Dentistry, we know just how important early intervention and strong daily habits are for keeping your child’s smile bright and pain-free. Left untreated, cavities can cause more than just a toothache—they can interfere with eating, speaking, and overall health.

If you’re wondering how to prevent tooth decay in Campbell CA and Los Gatos CA or what to do if your child already has a cavity, this guide is here to help.

What Causes Cavities in Kids?

Cavities form when bacteria in the mouth feed on sugars and starches, producing acid that eats away at tooth enamel. That process usually starts with plaque—the sticky film that builds up from food particles and saliva. Over time, if not removed, plaque hardens and leads to decay.

Here are some of the top contributors to cavities in children:

• Inadequate brushing and flossing: If plaque isn’t removed, bacteria thrive.
• High-sugar diets: Candy, soda, and even juice can fuel harmful bacteria.
• Bedtime bottles or sippy cups: Prolonged exposure to milk or juice during sleep increases decay risk.
• Limited fluoride exposure: Fluoride strengthens enamel and fights early decay.
• Genetics: Some children are simply more cavity-prone than others.

How to Spot a Cavity Early

Cavities aren’t always obvious at first, but early signs can help you take action fast. Watch for:

• White or brown spots on the teeth
• Sensitivity to hot, cold, or sweet foods
• Bad breath that doesn’t go away
• Small pits or holes in the teeth
• Complaints of tooth discomfort or pain

If you notice any of these symptoms, it’s time to schedule a visit with a pediatric dentist.

How to Prevent Cavities in Children

Good news—most cavities are avoidable with the right daily habits and regular dental care. Here’s how to keep your child’s teeth strong:

1. Practice Great Oral Hygiene at Home: Start brushing with fluoride toothpaste as soon as the first tooth appears. Kids should brush twice a day and floss once a day. Be sure to help them brush until they’re old enough to do it thoroughly on their own—usually around age 7 or 8.
2. Make Smarter Snack Choices: Limit sugary snacks, sticky candies, and sweet drinks. Encourage water (especially fluoridated tap water) and offer snacks like fresh fruits, cheese, yogurt, or vegetables.
3. Visit the Dentist Early and Often: Your child’s first dental visit should happen by age one, or within six months of their first tooth erupting. After that, regular checkups every six months help catch and prevent problems before they become serious.
4. Ask About Sealants and Fluoride: Dental sealants protect back molars, where food and bacteria love to hide. Fluoride treatments strengthen enamel and can even reverse early signs of decay. Both are safe, simple, and effective tools in cavity prevention.

Treating Cavities in Kids: What Are Your Options?

If a cavity has already formed, early treatment is essential to stop it from spreading. Depending on the severity, your dentist may recommend:

• Fluoride treatments: Can sometimes stop or reverse early decay.
• Fillings: Restore mild to moderate cavities.
• Crowns: Used for deeper decay, especially in baby molars.
• Tooth extractions: In extreme cases, removal may be necessary to protect surrounding teeth.

At Campbell Pediatric Dentistry, we use kid-friendly techniques and a gentle approach to make treatment as comfortable as possible.

Ready to Protect Your Child’s Smile?

Whether you’re focused on prevention or in need of treatment, Campbell Pediatric Dentistry is here to help. Our top-rated pediatric dental team provides compassionate care and expert guidance to keep your child’s teeth healthy from their first tooth to their teenage years.

Call us today to schedule a checkup and take the first step toward a cavity-free future!