Restorative Recourse: How Long Do Dental Fillings Usually Last?

February 13, 2026

Filed under: Uncategorized — tntadmin @ 11:29 pm
Dentist applying light to man's dental filling to bond it

Did you know that sources estimate the average human mouth contains between 20 billion and 100 billion bacteria at any given time? Some of these germs are beneficial and support healthy digestion and other functions. But others are harmful and contribute to oral issues, like cavities, if they’re able to thrive.

Thankfully, your dentist can provide tooth-colored fillings to restore damaged enamel and prevent the decay from spreading. However, many patients have questions about this service before proceeding, like how long the results usually last. Continue reading to learn more about it!

What are Dental Fillings Made From?

Historically, dentists relied on amalgam fillings and crowns to repair injured or decayed teeth. These are made from a mixture of powdered metals, like silver, tin, and copper, and typically include liquid mercury as a binding agent. Although incredibly durable, these materials also enhance sensitivity to hot and cold temperatures and can make your enamel look dark or dirty.

Today, most providers use a customizable putty-like composite resin made from microscopic plastic and glass particles. Not only is this an FDA-approved, biocompatible solution, but the material can also match the tone of your teeth for seamless results that boost your confidence.

How Long Do Dental Fillings Last?

If you’re concerned that a more contemporary tooth-colored filling won’t last as long as an amalgam restoration, you can thankfully set your fears aside. These repairs often last 10+ years, which can be just as long as their metallic counterparts.

But their lifespan can depend significantly on your unique circumstances, and can potentially be impacted by different factors, such as:

  • Your oral hygiene habits. Brushing and flossing twice daily helps keep your teeth, gums, and dental work in good condition.  
  • Your dietary decisions. Eating overly hard, sticky, or crunchy foods can potentially harm, destabilize, or dislodge a filling.
  • Physical trauma. If you injure your tooth, the restoration could fail.
  • Grinding your teeth. The added pressure of constantly clenching down might damage it.  

How Can I Preserve My Restoration?

It’s normal to want to maintain your filling for as long as possible so you can continue using your tooth to eat, speak, and smile normally. You can help keep it in good shape by:

  • Cleaning your mouth consistently. Practicing positive at-home oral hygiene habits is a simple and effective way to preserve your restoration.
  • Reduce sugar consumption. Avoiding overly sugary foods and drinks helps prevent additional decay and disease that might hurt your filling and the underlying tooth.
  • Schedule routine checkups. Seeing your dentist every six months for an examination and cleaning allows them to monitor your oral health and treat any areas of concern, such as thinning enamel or a loose filling, before they progress.

If you have additional questions about tooth-colored fillings or preserving your dental health, you can learn more by scheduling a consultation with your dentist!

About the Practice

At Comal Dental, patients benefit from two accomplished dentists who are passionate about helping them build and maintain the healthiest, happiest versions of their smiles. Dr. Haag and Dr. Hansen collaborate to provide a comprehensive menu of services, including customizable tooth-colored fillings, to meet all your needs under one roof. They combine a caring approach with advanced technology to provide comfortable, accurate treatment results intended to last. If you need to have a cavity filled, you can request an appointment on the website or by calling (830) 999-2492.

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