Composite Dental Fillings: What are they and when are they used?

At some point in your life, you may experience a cavity that will require a filling. While fillings are common you may not be aware that there are multiple options for the type of filling you receive. Here, our Ontario dentists are here to discuss composite dental fillings and why they may be used.

What is a composite filling and how are they used?

When you develop a cavity, your dentist will remove the decay from your tooth and use a filling to cover or 'fill' the area where the decayed material was.

Traditionally, fillings were a silver-coloured material, known as amalgam, that was quite visible in contrast to the shade of a natural tooth. Over time, other options were developed, one of which was composite.

Composite fillings are a tooth-coloured mix of plastic and ceramic, making them an excellent option for teeth that are exposed or visible when you talk or smile.

When might composite fillings be beneficial?

Composite fillings are effective for repairing chipped or cracked teeth because they blend in with your tooth and have a natural appearance.

Tooth areas that sustain heavy use, such as the chewing surfaces of molars, are typically not good candidates for a composite filling.

Some dental plans won't cover the cost of composite fillings in these areas due to their reduced strength in comparison to amalgam. Speak with your dentist to determine which type best suits your needs.

Why are composite fillings a good choice?

Composite fillings blend with your natural teeth, making them virtually invisible.
The material is slightly flexible resulting in reduced drilling, and preserving more of your natural tooth.
The resin material in composite fillings creates a strong bond with your tooth.
They are durable and can withstand moderate pressure and usage.
They are well-suited to small fillings and repairs.
Composite can also be used to handle other cosmetic alterations, such as changing the colour or shape of your teeth.

How long can I expect a composite filling to last?

Composite fillings, while durable, tend to have a shorter life span than other filling materials. They tend to last about 7 years. You might get 10 years out of a composite filling if the fillings are well taken care of through proper oral hygiene habits.

Is it safe to have composite fillings?

The composite dental filling has become increasingly popular and many dentists say that composite resin causes no health concern. Both composite filling and sealants are made of resin material, containing BPA which releases for some time in the mouth after filling replacement.

However, the dental community pointed out some significant facts. According to them, studies have failed to underline any conclusive results regarding the use of BPA in the resins as a harmful component. In addition to that, they believe that composite resins use a negligible amount of Bis-GMA, which is not detrimental to the patients. They concluded health concerns regarding composite resins are baseless that and do not have substantial evidence to prove BPA as a threat to human health.