A cavity does not have to mean visible metal in your smile. Composite fillings restore decayed or damaged teeth using a tooth-colored resin that blends with your natural enamel — making the repair virtually invisible when you talk, laugh, or eat. At Smile Craft Dental, we place composite fillings at our Sunnyvale location for patients of all ages as part of our restorative dentistry services.
Most fillings are completed in a single visit of 30 to 60 minutes. The procedure is straightforward, comfortable, and preserves more of your healthy tooth structure than traditional amalgam fillings — making composites the preferred choice for most of our patients.
What Are Composite Fillings?
Composite fillings are made from a blend of plastic resin and fine glass particles. The material is matched to the color of your surrounding teeth, applied in layers directly onto the prepared tooth, and hardened with a curing light — creating a strong bond with the tooth structure. According to the American Dental Association, composite resin is a widely used, clinically supported restorative material that can be used in both front and back teeth.
Beyond cavities, composite resin is also used to repair chipped teeth, close minor gaps, and reshape worn edges — making it one of the most versatile materials in restorative and cosmetic dentistry.
Composite vs. Amalgam Fillings
If you have older silver fillings or are weighing your options for a new filling, the table below outlines the key differences between composite resin and traditional amalgam.
| Same-visit composite fillings in Sunnyvale — book your appointment today. | Request an Appointment |
What to Expect During a Composite Filling Appointment
Getting a composite filling at our Sunnyvale office is a comfortable, same-visit procedure. Here is how the appointment typically flows.
How Long Do Composite Fillings Last?
With proper care, composite fillings typically last 7 to 10 years, and smaller fillings in patients with good oral hygiene can last significantly longer. The filling itself cannot decay, but the tooth surrounding it can — which is why keeping up with brushing, flossing, and regular cleanings is just as important after a filling as before. Habits like chewing ice, biting fingernails, or clenching teeth can chip or crack composite resin over time. If you grind your teeth at night, a custom night guard helps protect both your fillings and your natural teeth.
We monitor your composite fillings at every checkup and can replace or repair them if they chip, stain, or wear down at the margins.
Replacing Old Amalgam Fillings
Many patients ask whether they should replace existing silver fillings with composites. We do not recommend removing functional amalgam fillings solely for cosmetic reasons — the removal process involves some risk to the surrounding tooth. However, if an old silver filling is cracked, leaking, or causing sensitivity, replacing it with a composite at that point is a reasonable choice. We evaluate the condition of existing restorations at every checkup and will let you know if any need attention.
We accept most major PPO insurance plans — composite fillings are typically covered as a basic restorative benefit, though coverage percentages vary by plan and tooth location. We do not accept Delta Dental. Our team verifies your benefits and provides a clear cost estimate before treatment. Cherry financing is available for patients who want flexible payment options.
| Ready to restore your smile? Book your composite filling appointment at Smile Craft Dental Sunnyvale. | Request an Appointment |
Frequently Asked Questions About Composite Fillings in Sunnyvale
Below are the questions patients ask us most often about tooth-colored fillings.
What are composite fillings made of?
Composite fillings are made from a mixture of plastic resin and fine glass or ceramic particles. The material is shaded to match your natural tooth color and bonds chemically to your enamel — unlike amalgam, which relies on mechanical retention. The result is a restoration that both looks and functions like part of your natural tooth.
Do composite fillings hurt?
The procedure is done under local anesthesia, so you should feel no pain during the filling. Some mild sensitivity in the treated tooth for a few days after the appointment is normal as the tooth adjusts — this is common with any filling type and usually resolves on its own. If significant sensitivity persists beyond a week, contact our Sunnyvale office.
How long do composite fillings last?
Most composite fillings last 7 to 10 years. Smaller fillings in patients with good oral hygiene and no grinding habits can last considerably longer. The filling itself cannot decay, but the tooth around it can — so consistent brushing, flossing, and regular checkups remain important. Habits like chewing ice or nail-biting can shorten a composite’s lifespan.
Are composite fillings covered by insurance?
Most PPO dental insurance plans cover composite fillings as a basic restorative benefit, typically at 70–80 percent after the deductible for front teeth. Coverage for back-tooth composites varies — some plans cover them at the same rate as amalgam, paying the amalgam amount and requiring you to pay the difference. We do not accept Delta Dental. Our team verifies your specific coverage before treatment and provides a clear cost estimate.
Can I replace my silver fillings with composite?
We do not recommend removing functional amalgam fillings solely for cosmetic reasons — the removal process involves drilling into the tooth and carries some risk. However, if an existing silver filling is cracked, leaking, creating sensitivity, or has worn down significantly, replacing it with composite at that point is clinically sound. We assess your existing restorations at every checkup and will recommend replacement only when there is a clinical reason to do so.
How do I care for a composite filling?
Care is the same as for your natural teeth: brush twice daily, floss once a day, and keep up with professional cleanings every six months. Avoid chewing on very hard items like ice, hard candy, or pens. If you grind your teeth at night, a custom night guard protects both your fillings and your surrounding enamel. We polish composite restorations at your checkups to keep them looking their best.
Composite Fillings at
Flexible Payment Options — Cherry Financing Available
We accept most PPO insurance plans and offer Cherry financing so you can get the care you need and pay over time.
Flexible Payment Options — Cherry Financing Available
We accept most PPO insurance plans and offer Cherry financing so you can get the care you need and pay over time.
Smile Craft Dental in Sunnyvale
At Smile Craft Dental’s Sunnyvale location, composite fillings are completed in a single comfortable visit using tooth-colored resin that blends naturally with your smile. Whether you need a new filling for a cavity or want to address a chipped or worn tooth, our team walks you through your options honestly and completes most restorations the same day. We accept most major PPO insurance plans, offer Cherry financing, and do not accept Delta Dental.
Cavities do not get better on their own. Schedule your Sunnyvale appointment today and let us take care of it in one visit.