7 Advantages of Composite Resin Fillings Over Amalgam Fillings

Affordable Dental Fillings in Thornhill, Ontario

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What Are Dental Fillings?

Dental fillings are materials used to restore damaged teeth. They repair tooth structure and fill cavities brought on dental decay. Moreover, the procedure entails removing damaged components, cleaning the region, and filling it with suitable material. Composite resin, amalgam, and other materials are all possible choices.

Dental fillings prevent further dental decay, restore its shape, and strengthen the tooth. The procedure is usually painless and benefits oral health. Additionally, regular dental examinations allow for the early detection and treatment of cavities, thereby preventing the need for more extensive dental procedures in the future.


There are several common types of dental fillings:

Composite Fillings

These are a type of tooth-colored filling produced from a plastic and glass blend. They blend in with the natural tooth color and are also appropriate for visible teeth.

Amalgam Fillings

These silver-colored ones contain mercury. Moreover, they are popular for back teeth since they are long-lasting and inexpensive.

Ceramic Fillings

These are high-strength ceramic ones, sometimes called porcelain fillings. They are aesthetically beautiful and long-lasting, but they can be costly.

Glass Ionomer fillings

These are a mix of acrylic and glass. They release fluoride, which can help prevent additional tooth decay. Children and non-load-bearing places are the typical uses for them.

Dental Fillings in Thornhill, Ontario

Gold Fillings

These are incredibly strong because they are made of an alloy of gold. They cost more than other solutions and need several visits.

Dental Inlays and Onlays

These are custom-mad in a dental laboratory. Onlays cover the cusps, while inlays are inside the tooth.

The choice of filling material depends on factors such as:

  • Tooth’s location
  • Severity of erosion
  • Patient’s aesthetic preferences
  • Budget


Dentists can assist patients in making the best decision for their individual needs.

Seven Advantages of Composite Resin Fillings Over Amalgam Fillings

Composite resin ones have various advantages over amalgam ones:


Composite resin fillings match the tooth’s natural color and are nearly unnoticeable. In contrast to amalgam, they blend in with the surrounding tooth structure, improving the smile’s appearance.

Conservative Preparation

Compared to amalgam, composite resin ones require less dental practice. Removing only the decaying section of the tooth allows the dentist to keep the healthier dental structure, leading to a more conservative restoration.

Bonding Strength

Composite resin filling bonds directly to the tooth structure. This bonding forms a strong seal that helps to support the tooth, avoiding further damage or fractures. Amalgam filling relies only on mechanical retention because they do not bond to the tooth and are, therefore, more likely to leak over time.

Benefits of Dental Fillings


Composite resin filling can restore broken, cracked, and damaged teeth in addition to cavities. It’s possible to mould and polish them to mimic the tooth’s unique structure for a seamless result.

Lessened Sensitivity

Compared to amalgam, composite resin ones are less sensitive to temperature fluctuations. This means patients may suffer less post-operative sensitivity or discomfort after inserting composite resin ones.


Composite resin fillings are mercury-free, unlike amalgam ones, which contain mercury. This is an essential factor for anyone concerned about mercury exposure.

Minimized Tooth Discoloration

Compared to amalgam, composite resin ones do not eventually discolor teeth. This is especially important for people who need fillings in visible parts of the mouth.

It’s crucial to note that amalgam fillings offer their benefits, including longevity and cheaper cost, which may make them suitable for some cases. In the end, dentists should decide to use composite resin or amalgam ones based on the patient’s individual dental needs and preferences. Call us at SkyRise Dental if you live in Thornhill, Ontario or book an appointment immediately!

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