Learning that your child has a cavity can bring up a lot of questions. You may wonder how the tooth will be repaired, whether the repair will look natural, and how comfortable the visit will be. A cavity rarely goes away on its own, and treating it early can help prevent a larger problem later.
At Bay Area Kids Dentist, our board-certified pediatric dentists repair decayed baby and permanent teeth with tooth-colored composite fillings. As part of our pediatric dental care in Sunnyvale, we explain each step in words your child can understand and talk with you about the best option for the tooth.
A white filling, also called a composite or tooth-colored filling, repairs a tooth after the decayed part has been removed. The material is a resin-based blend that we shade to match your child’s tooth. It bonds to the tooth and is hardened with a special light, so a repaired tooth blends in with the rest of your child’s smile.
Cavities do not always hurt at first, which is why routine exams matter. These signs may point to decay.
Only a dental exam can confirm a cavity. During your child’s visit we may use digital X-rays to find decay between teeth, and regular cleanings and exams help us catch problems early.
We keep your child’s comfort at the center of every filling visit. Here is what typically happens.
Many parents ask how white fillings differ from traditional silver (amalgam) fillings. This table shows the main differences.
| White (Composite) | Silver (Amalgam) | |
|---|---|---|
| Appearance | Color-matched to the tooth | Dark metal color |
| Material | Resin-based, with no heavy metals | About half mercury, mixed with silver, copper, tin, and zinc |
| Tooth preparation | Typically removes less healthy tooth structure | Typically removes more |
| Placement time | May take more time to place | Often quicker to place |
| Durability | May not last as long in back teeth with heavy chewing forces | Can hold up well in large back-tooth fillings |
Each material has trade-offs. The U.S. Food and Drug Administration notes that amalgam can be a good choice in some situations, such as large fillings in back teeth, but recommends that children, especially those under age six, avoid it when possible and appropriate. Your child’s dentist will explain which material fits the tooth and answer your questions.
Sometimes decay is too extensive for a filling to protect the tooth. In those cases, our dentists may recommend a pediatric crown to restore strength and help prevent further damage. For some children, silver diamine fluoride may be a drill-free way to help stop a cavity from growing, and your child’s dentist can explain whether it is a good fit. If your child has sudden pain or swelling, contact us right away about emergency pediatric care.
Good habits protect a new filling and the rest of your child’s teeth. These tips can help.
Our filling aftercare tips cover more, and dental sealants can help protect the grooves of back teeth from new cavities.
Every dentist at Bay Area Kids Dentist is board-certified by the American Board of Pediatric Dentistry. Our Sunnyvale office is designed with children in mind, and our team explains each step before treatment begins. We will review your child’s options with you and answer your questions about costs, insurance, and financing.
If your child has a cavity or you notice signs of decay, we are here to help. Please reach out through our contact form to schedule your child’s visit.
Bay Area Kids Dentist — Sunnyvale
1565 Hollenbeck Ave STE 102, Sunnyvale, CA 94087
(408) 520-2656
A white filling, also called a composite or tooth-colored filling, is a resin-based material that repairs a tooth after decay is removed. We shade it to match your child's tooth, and it bonds to the tooth and is hardened with a special light. Your child's dentist will recommend the right material for each tooth.
Composite fillings do not contain mercury and are widely used in children's dentistry. As with any dental material, a small number of people can be sensitive to certain components, so please tell us about any known allergies before treatment. We are happy to talk through the benefits and trade-offs of each material with you.
We focus on keeping your child comfortable. We explain each step, numb the area when needed, and offer laughing gas or other sedation options for anxious children. Your child may feel pressure or hear the sounds of the dental tools, and we let you know what to expect beforehand.
Yes, they can. Baby teeth help children chew and speak and hold space for permanent teeth, and decay in a baby tooth can lead to pain or infection. Depending on the tooth and the size of the cavity, your child's dentist will recommend whether a filling or another treatment is the best choice.
Wait until the numbness wears off before your child eats, so they do not accidentally bite their cheek, lip, or tongue. Soft foods are often easier at first. If your child's bite feels uneven or the tooth stays sensitive, please contact our office.
How long a filling lasts depends on its size and location, your child's chewing habits, and how well teeth are cared for at home. Brushing twice a day with fluoride toothpaste, flossing, a balanced diet, and regular dental checkups help fillings last as long as possible. We check fillings at routine exams and let you know if one needs attention.