Dental amalgams have been used world-wide for a long time. Although not the most aesthetic material, it is still commonly used for tooth fillings owing to it's strength and longevity. However modern dentistry now offers more aesthetic materials with improved properties.
Composite resins have mainly been used on the front teeth, where a silver filling would be noticeable. Thanks to advances in modern dental materials and techniques, teeth can now be restored with more aesthetic and natural appearing filling materials. Increasingly, these fillings are now also being used on the back teeth. The materials come in a variety of shades so that they will match the color of your own teeth.