What a composite filling is
Composite is a tooth-colored resin made of plastic with added particles, sometimes including glass. It contains no metal. We use it mostly to treat cavities, but it can also repair chips and cracks or reshape a tooth for a better look. The shade is matched to your natural teeth.
Other filling materials include silver amalgam, gold and porcelain. Metal fillings are far more visible. Porcelain matches tooth color well but can be costly. For many patients, composite strikes a good balance of appearance, cost and durability.
Why get a filling
A filling cleans out the decayed area and seals it, creating a barrier between the tooth and bacteria so the decay does not spread. Composite bonds to the tooth and supports what is left of it, which also helps reduce sensitivity to hot and cold. Decay is the most common reason, and a filling is usually the least invasive way to treat it. We also use fillings for cracked, chipped or worn teeth and for small holes that are not caused by decay.
People of any age can need a filling. They are less common in children who still have baby teeth, and how often you need one depends a lot on your oral hygiene.
What to keep in mind
- In large fillings, composite may not last as long as silver amalgam. In smaller ones it does well.
- Depending on its location, composite can chip, but it can be repaired.
- Placement takes a little longer than a metal filling.
- Coffee, tea and red wine can slightly change the shade over time. A plastic coating can help prevent this.
Cost and insurance
Composite usually costs more than silver amalgam and less than other options. Fillings are generally covered by insurance because they are considered essential treatment, but plans differ. Check with your insurer about any co-pay. Our staff can help you find an option that fits your budget.
Toothache, a visible hole or a chipped tooth? Call (781) 289-3331 and we will take a look.
Common questions
How long does a composite filling take?
About 10 to 20 minutes longer than a silver filling, depending on its size and location. Plan to be in the chair for at least an hour.
What are composite fillings made of?
A metal-free mix of resin and powdered glass, silica or other ceramic particles. That makes them a good choice if you have a metal allergy or prefer to avoid metal.
How long do they last?
Around seven years on average. Smaller fillings, good oral hygiene and regular checkups can stretch that to ten years or more.
What are the advantages of a tooth-colored filling?
It matches your tooth shade for a seamless look and still protects the tooth from further decay.
Does insurance cover them?
Usually, since fillings are essential care, but coverage varies. Contact your insurer before treatment, and we can go over payment details at your visit.