Dental fillings fall into two buckets: amalgam and composite resin. Up until recently, amalgam fillings have been widely considered the superior dental solution. Amalgam fillings typically last longer than comparable direct restorative materials, such as composite. On average, most amalgam restorations serve ten to twelve years, whereas resin-based composites last for approximately half that time. However, with recent improvements in composite material science and a better understanding of the technique-sensitivity of placement, the difference between amalgam and composite has shrunk significantly. Now, it’s common to select between the two filling types based primarily on aesthetic preferences.