How Long Do Fillings Last?

Unfortunately, fillings do not last forever but they can last a long time — even decades. How long your fillings will last you depends on several factors like your oral hygiene, the size of the filling, the severity of your cavity, and the filling material.

Your dentist may choose one of three types of filling materials:

1. Composite resins — Composite resins are the same color as your teeth and contain quartz or glass to protect small to mid-sized cavities for longer.
2. Silver amalgam — Silver fillings are less expensive than composite resin fillings but they’re composed of silver, copper, mercury and tin. They’re durable, but they’re silver, which means you can see them.
3. Gold — Gold fillings are composed of gold, copper, and other metals and look gold.

Composite Resin Fillings

Composite resin fillings will last for about seven to 10 years in healthy patients. However, some dentists estimate that they can last for even longer.

Porcelain Fillings

Porcelain fillings are a strong option among dental filling materials. They can last up to 15 years.

Glass Ionomer Fillings

Glass ionomer fillings are typically used for cavities just below the gumline because they’re not strong enough to last in the part of the teeth patients use to chew. They can still last up to about 15 years.

Amalgam Fillings

Silver amalgam fillings can last for 10 to 15 years or more. These fillings are highly resistant to wear and tear, which is why they’ve been used for over 100 years.

Gold Fillings

Gold fillings can last anywhere from 10 to 30 years. As metal fillings, they’re the most  durable filling material available. However, they are less commonly used in dentistry today because they do not blend in with your natural tooth color. 

Temporary Fillings

Temporary fillings are only meant to last about thirty days. These fillings are used as a short-term solution until a patient can have another type of filling procedure or oral treatment done. They help to prevent further decay by closing the cavity.

How to Help Fillings Last Longer 

Maintaining fillings requires the same kind of dental care that it takes to maintain your general oral health. Take care of your teeth and make your fillings last longer by following these tips:

• Thoroughly brush your teeth at least twice per day with fluoride toothpaste
• Maintain daily flossing
• Limit your sugar intake
• Stay away from sticky snacks
• Reduce oral bacteria by rinsing your mouth with an alcohol-free, therapeutic mouth rinse
• Avoid tobacco products
• Avoid acidic drinks like sodas and juices
• Try not to bite down on hard foods
• Practice good dental hygiene
• Visit your dental twice a year(or as recommended) for check-ups and cleanings

Common Questions