How Long Do Fillings Last: A Comprehensive Guide

Image with three different fillings in teeth - Gold, Silver, and White

If you’ve recently had a dental filling or are considering getting one, you might wonder how long it will last.

Dental fillings are a standard restorative treatment for repairing teeth damaged by decay or fractures.

In this article, we will look at the factors that influence the lifespan of fillings and provide you with valuable insights for understanding their longevity.

Factors affecting the lifespan of fillings

Several factors play a role in determining how long your fillings will last.

Understanding these factors can assist you in making informed decisions about your oral health.

Let’s explore the key elements influencing the durability of dental fillings:

Type of filling material

The filling material used by your dentist significantly influences its lifespan.

Common filling materials include amalgam (silver fillings), composite resin (tooth-colored fillings), gold, and porcelain.

Each material has its unique properties, strengths, and potential weaknesses.

Amalgam fillings, for instance, are known for their exceptional durability and can last up to 10-15 years or longer. On the other hand, composite resin fillings are aesthetically pleasing but may not last as long as amalgam fillings.

Size and location of the filling

The size and location of the filling within your mouth can affect how long the filling lasts.

Fillings that are smaller in size and located on non-load-bearing teeth tend to have a longer lifespan.

While large fillings or those on chewing surfaces that experience more stress and wear will not last as long.

Oral hygiene practices

Maintaining good oral hygiene is crucial for the longevity of dental fillings.

Brushing your teeth twice daily, flossing regularly, and using an antibacterial mouthwash can help prevent decay and gum disease.

Poor oral hygiene can contribute to the deterioration of fillings over time, reducing their lifespan.

The average lifespan of dental fillings

While it is challenging to provide an exact timeline for how long a filling will last, the factors above influence each individual case.

On average, dental fillings can last between five to 15 years. However, with proper care and maintenance, they can exceed this range and potentially last even longer.

Non-metal fillings: advantages of tooth-colored restorations

Non-metal fillings, also known as tooth-colored or composite resin fillings, offer several advantages over traditional metal fillings.

These fillings are made from a blend of durable plastic and glass materials that can be color-matched to your natural tooth shade, providing a seamless and aesthetically pleasing result.

One significant advantage of non-metal fillings is their ability to bond directly to the tooth structure, which allows for conservative tooth preparation, preserving more of the natural tooth.

Moreover, the absence of metals eliminates the risk of metal-related allergies or sensitivities.

With their ability to blend seamlessly with natural teeth and provide a reliable, long-lasting restoration, non-metal fillings are popular for those seeking both durability and a natural-looking smile.


The lifespan of dental fillings depends on several factors, including filling material, size, location, oral hygiene practices, tooth grinding or clenching, and diet and lifestyle habits.

By taking proper care of your oral health and following your dentist’s recommendations, you can maximize the lifespan of your fillings and maintain a healthy, functional smile for years to come.

Want to ensure the longevity of your dental fillings? Discover expert tips and tricks, don’t miss out! 

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