Composite resin restorations offer an array of benefits over traditional silver mercury fillings. Since the filling material actually adheres to tooth structure, the preparation procedures are less invasive, without pins or retentive grooves to hold the filling in place. The dentist removes only diseased portions of the tooth, leaving healthy tooth structure intact. The adhesion (bonding) process strengthens the tooth with resilient, long lasting, natural looking restorations.
Over time, amalgam (silver fillings) tend to corrode, allowing a gap, and recurrent decay, at the interface of the filling and tooth. Fillings may be replaced with new composite resins without irritation of sensitive periodontal (gum) tissue, and minimal loss of tooth structure. The natural aesthetics is a bonus.
Incipient decay may be treated with a flowable composite resin that penetrates small pits to conserve natural tooth.