A composite filling can restore your tooth and match your natural smile perfectly, giving strength without the shiny look of metal. These tooth-colored options are made from a mix of resin and glass particles, created to bond safely with your teeth while keeping more of your natural structure intact.
Some people worry about BPA, a chemical sometimes connected to plastics, but today’s composite fillings are either BPA-free or contain amounts so small that they are not a health concern. Let’s discuss it further.
BPA and Composite Fillings
Bisphenol A (BPA) is a chemical often used to make plastics and resins, including some dental composite materials, because it helps give the resin its strength and other useful properties. BPA is known as an endocrine disruptor and has been linked to possible health issues.
These issues include effects on the reproductive system and brain development, metabolic problems, heart disease, infertility, and certain cancers. In dental composites, BPA itself isn’t directly added but can be present in tiny amounts or in related compounds like bisphenol-A glycidyl dimethacrylate (Bis-GMA) or bisphenol dimethacrylate (bis-DMA).
These materials may release very small amounts of BPA, mostly right after placement, because the resin hasn’t fully hardened yet. However, the amount of BPA released is far below the safe daily limits set by organizations like the US Environmental Protection Agency (EPA).
After the first few days, BPA release drops to almost nothing and is considered safe if the filling is properly cured. There are also composite fillings sold as BPA-free or with much lower BPA levels. These use alternative materials that avoid BPA or its byproducts.
Safety of Composite Fillings
Composite dental fillings are generally safe for the body and are well accepted by oral tissues. Modern composites are made of resin, tiny filler particles, and bonding agents designed to prevent harmful reactions like cell damage, swelling, or allergies when they touch the mouth’s tissues.
Before being approved for use, dental composites go through strict safety tests, both in the lab and in living tissues, to reduce the chance of toxic or allergic effects. Thanks to ongoing research and improved technology, newer materials are less toxic than older ones.
Benefits of Composite Fillings
Composite fillings offer the following main benefits that make them a popular choice for restoring teeth:
- Natural Look and Color Match
Composite fillings are made from resin that can be matched to the exact color of your natural teeth. This makes them blend in perfectly, especially for visible teeth, and look much better than traditional metal fillings.
- Protects More of Your Natural Tooth
Unlike metal fillings, which often require more drilling, composite fillings stick directly to the tooth. This means the dentist can remove less healthy tooth material, keeping more of your natural tooth strong and intact.
- Strong and Less Sensitive to Temperature
Composite fillings harden quickly with a special light, creating a strong and long-lasting repair. They don’t transfer heat or cold like metal fillings, so your teeth are less likely to feel sensitive to temperature changes.
- Lower Risk of Cracks and New Cavities
Because they bond tightly to your tooth, composite fillings provide extra support and reduce the chance of cracks. The secure seal also keeps out bacteria, which helps prevent new cavities from forming around the filling.
Wrapping Up
Composite fillings are considered very safe, and BPA exposure is not a concern because the amounts are extremely small or BPA-free options are available. For the best guidance and reassurance, talk to your dentist, who can suggest the safest and most suitable materials for your dental needs.
Consult Katy’s top cosmetic dentist, Dr. Allen Jahangiri at Noble Smile Family Dentistry, for composite dental fillings. Call us at (281) 394-2929 to book an appointment.
