A variety of materials may be used to restore cavities, and these differ in both strength and aesthetic characteristics. Common restorative materials include silver amalgam (an alloy of mercury, silver and other metals), tooth-coloured composite resin, and porcelain (ceramic)
restorations. The choice depends on the location of the tooth, extent of decay, aesthetic demands and patient budget.
After placement, some temporary sensitivity or discomfort is normal as the tooth adjusts; this typically subsides within days.
Fillings generally last many years, but may wear out over time due to chewing forces. Patients who habitually clench or grind their teeth may need to replace restorations sooner than average.