Composite fillings are made from a tooth-coloured resin material that blends seamlessly with your natural teeth, making them ideal for visible areas. They are also bonded directly to the tooth, which provides additional strength. Amalgam fillings, on the other hand, are made from a mixture of metals, including silver, and are known for their durability, especially in the back teeth where chewing pressure is greatest. However, amalgam fillings are not tooth-coloured, which may make them less desirable for visible areas of the mouth.