Throughout history, dentists and those intent on improving oral health have used a number of different filling materials for compromised teeth. From pure gold to silver, composite and even beeswax, plenty of materials have been used to fill teeth. Two fillings have emerged as the best: composite resin and silver amalgam, also known as metal fillings. Part of the appeal of the composite variety is it looks exactly like natural teeth. However, there are some benefits to metal fillings as well. Let's take a look at the differences between composite resin fillings and metal fillings to help patients select the type that is optimal for their unique mouth.