Everything You Need to Know About Composite Fillings

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Everything You Need to Know About Composite Fillings

According to the World Health Organization, untreated cavities are the most common dental condition worldwide, experienced by 2.3 million people with permanent teeth (adults). For many years, amalgam was the most popular material, but composite fillings have become more used lately due to their combination of looks and durability.

This article will talk about what composite resin fillings are, how long they last, and their advantages and disadvantages.

What Are Composite Dental Fillings? 

Composite resin fillings (also known as white fillings) are polymer-based materials made of free-radical polymerization, which in modern materials is visible-light initiated. They are used to fill cavities, restore tooth decay, and prevent further cavities.

Unlike classic fillings, this filling match almost invisibly with your teeth to keep them looking natural. It is customized to blend in with your natural tooth color.

To know what is the right dental filling for you, click here.

Are composite fillings safe?

You may have heard concerns about the presence of BPA (Bisphenol A) in dental fillings.

According to the American Dental Association, there is no evidence that the low quantities of BPA found in Composite fillings pose a potential health risk for patients. However, not all of these fillings contain BPA.

So if you need to get a filling, talk to your dentist about the used material to ease your worries! If you already have composite fillings that may contain BPA, you don’t have to worry about it.

How long does this filling last?

The lifespan of this material depends on several factors such as:

  • The location in the mouth.
  • Oral hygiene habits.
  • Diet.
  • The occurrence of bruxism.

However, this filling last five to ten years on average.

What are Composite fillings advantages?

  • They look more aesthetically pleasing.
  • Can be completed in one visit. 
  • They bond to the tooth giving it greater strength, which helps prevent breaks.
  • Can be used to fix minor flaws.
  • They can be repaired if damaged.
  • They require less drilling, so not as much tooth structure needs to be removed.

What are its disadvantages?

  • Shorter lifespan than amalgam fillings.
  • More expensive than amalgam fillings.
  • They may stain from frequent exposure to coffee, tea, and red wine.
  • Can take longer to apply.


A composite filling may satisfy your desire for a filling that looks good and doesn’t detract from your smile. Additionally, it may prevent further tooth decay from weakening your tooth.

Our dentists can talk with you about your options to ensure this is the best one for you. That way, you’ll know what to expect from your filling!

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