If you need a filling, you may be wondering whether to choose a tooth-colored filling or a traditional silver filling. Both repair teeth damaged by cavities, but they differ in appearance, how they bond to the tooth, and how much healthy tooth structure needs to be removed. Here’s what to know so you can make an informed choice.
What Are Silver Fillings?
Silver fillings, also called amalgam fillings, are made from a mixture of metals that includes silver, tin, copper, and mercury. They have been used for more than a century and are known for their strength and durability. The U.S. Food and Drug Administration provides information about amalgam fillings, including recommendations for certain higher-risk groups.
What Are Tooth-Colored Fillings?
Tooth-colored fillings, often called composite fillings, are made from a resin material that is matched to the shade of your natural teeth. The material is applied in layers and hardened with a special light, bonding directly to the tooth.
Comparing the Two
Appearance
Tooth-colored fillings blend in with your smile, making them nearly invisible. Silver fillings are noticeable and can make teeth look gray over time.
Preserving Your Natural Tooth
Because composite material bonds directly to the tooth, we can often remove less healthy tooth structure when placing a tooth-colored filling. Silver fillings typically require more of the tooth to be shaped so the filling stays in place.
Strength and Durability
Silver fillings are very durable, especially on back teeth that handle heavy chewing. Modern composites have improved significantly and work well for most fillings, though very large cavities may be better treated with a porcelain crown.
Sensitivity
Metal expands and contracts with temperature, which can sometimes cause sensitivity or small cracks over time. Composite fillings are less affected by temperature changes.
Should You Replace Old Silver Fillings?
There’s no need to replace a silver filling that is in good condition just for the sake of it. However, if an old filling is cracked, leaking, or worn, or if a tooth around it is cracked or broken, replacing it with a tooth-colored filling or crown can restore strength and improve your smile. Our intraoral camera lets you see the condition of your fillings up close.
Fillings at Our Office
At Apple Dental of San Diego, we place natural-looking, tooth-colored fillings for patients of all ages, including children’s cavities and fillings. We find decay early with digital X-rays, so fillings stay small and simple. If decay has reached the nerve, root canal therapy may be needed before the tooth is restored.
Keep Your Teeth Cavity-Free
The National Institute of Dental and Craniofacial Research recommends fluoride, healthy eating habits, and regular dental visits to prevent tooth decay. Keep up with cleanings and exams every six months, and ask about dental sealants for extra protection. To schedule an appointment, call (619) 236-9549 or request an appointment online.