Dentist use composite fillings because it is fracture resistant and durable in small and medium sized restorations that require moderate pressure for chewing. This type of filling is also known as ‘filled resins’ or ‘composites’. When the tooth is prepared, less structure is removed. As a result, this may result in a much smaller filling compared to an amalgam filling. Additionally, this filling may be bonded to the cavity. Bonding (or adhesive) allows for a conventional tooth repair.
When compared to amalgam fillings, composite fillings are considered a more time-consuming process. The cavity must be kept dry and clean during the filling process. A composite filling is prone to staining over a period of time. The cost is determined by the technique used to place the tooth and the size of the filling.