You notice a spot on your child’s tooth. Or maybe your child suddenly says a tooth hurts when eating something cold or sweet.

Naturally, you wonder: Does my child have a cavity?

Tooth decay is common in children, but a cavity isn’t always easy for a parent to recognize. Early decay may cause few noticeable symptoms, while a cavity that progresses can cause sensitivity, discomfort or pain. If something about your child’s tooth doesn’t look or feel right, a dental examination is the best way to find out what’s happening.

Can a Child Have a Cavity Without a Toothache?

Yes. A child can have tooth decay without complaining about pain.

Cavities develop over time. Early changes in the tooth may not cause obvious symptoms. As decay becomes deeper, a child may begin experiencing sensitivity or pain. This is one reason regular dental examinations are important even when your child’s teeth seem perfectly fine.

What Does a Cavity Look Like on a Child’s Tooth?

Parents sometimes expect every cavity to look like an obvious black hole. It isn’t always that simple.

Tooth decay can appear differently depending on how far it has progressed and where it is located. You might notice an unusual white area, discoloration, a brown or dark spot, or eventually a visible pit or hole.

But appearance alone cannot reliably tell you whether your child has a cavity. Staining and other changes can sometimes look like decay, while cavities between teeth may be difficult for a parent to see at all. A dentist can examine the tooth and determine whether decay is present.

Why Do Kids Get Cavities?

Cavities develop when bacteria in the mouth use sugars from foods and drinks and produce acids that attack tooth enamel. Repeated acid exposure can eventually weaken the tooth enough for decay to develop.

A child’s cavity risk can be influenced by several things, including:

• How thoroughly and frequently the teeth are brushed

• Frequent sugary foods or drinks

• Frequent snacking or sipping between meals

• Fluoride exposure

• Individual dental and health factors

Do Cavities in Baby Teeth Really Matter?

Yes. Baby teeth matter even though they eventually fall out.

Children use their primary teeth to chew, speak and maintain space as their permanent teeth develop. Untreated tooth decay can also become painful and may lead to infection.

So if a baby tooth develops a cavity, it shouldn’t simply be ignored because the tooth will eventually be replaced. Dr. Chin can evaluate the tooth and recommend what, if anything, needs to be done based on your child’s individual situation.

What Happens If My Child Has a Cavity?

Treatment depends on the location and extent of the decay, the tooth involved and your child’s individual needs.

Very early tooth decay may sometimes be managed with preventive strategies designed to help stop its progression. If a cavity has progressed further, treatment may involve removing the decayed portion of the tooth and restoring it with a filling. More advanced decay may require additional treatment.

The important point for parents is simple: earlier evaluation usually gives the dentist more opportunity to address the problem before it becomes larger or more uncomfortable.

How Can Parents Help Prevent Cavities?

Good prevention starts at home and continues with regular dental care.

Parents can help by:

• Helping children brush thoroughly twice a day with an appropriate amount of fluoride toothpaste

• Helping with brushing until children can clean their teeth effectively on their own

• Limiting frequent sugary snacks and drinks

• Scheduling regular dental examinations and professional cleanings

• Asking the dentist whether fluoride treatment or dental sealants may be appropriate

When Should I Call a Dentist About My Child’s Tooth?

If your child complains about tooth pain, sensitivity or discomfort when chewing — or if you notice a suspicious spot, hole or change in a tooth — it’s a good idea to have it examined.

You don’t need to determine at home whether the problem is definitely a cavity. That’s what the dental examination is for.

If your child develops significant facial swelling, difficulty breathing or swallowing, or appears seriously ill along with a dental problem, seek urgent medical attention.

Concerned About a Cavity? We’re Near Beaverton

If you’re in Beaverton, Cedar Hills or the surrounding Portland area and you’re concerned about a spot, sensitivity or pain in your child’s tooth, Cedar Hills Dental Care can evaluate what’s happening and discuss the appropriate next step.

Christine Chin, DMD earned her D.M.D. from OHSU in 1989 and has more than 35 years of dental experience. Cedar Hills Dental Care has cared for more than 10,000 smiles since 1986, with an emphasis on comfortable, patient-centered dental care.

Frequently Asked Questions

Can a cavity in a child go away on its own?

Very early changes in tooth enamel may sometimes be managed before a physical cavity forms, but once decay has progressed into a true cavity, the damaged tooth structure does not simply grow back. A dentist should evaluate the tooth and recommend the appropriate care.

Why does my child’s tooth hurt when eating sweets?

Sensitivity to sweets can occur with tooth decay, but there can be other causes of dental sensitivity. If it continues or concerns you, have the tooth examined.

Should I wait until my child says a tooth hurts?

No. Cavities can develop before a child experiences pain. Regular dental examinations can help identify problems that a child or parent may not notice at home.

Recommended Reading for Parents

Children’s Dentistry at Cedar Hills Dental Care →

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Composite Fillings →

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Dental Exams & Professional Cleanings →

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Family Dentist Near Beaverton: Dental Care for Kids, Parents & Adults →

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