A filling works by repairing and restoring the surface of a tooth that has been damaged by decay, fracture, or wear. A dental filling strengthens the tooth. If tooth decay is not repaired at its early stages, it will worsen and additional or alternative dental treatments may be necessary. With proper care and routine oral hygiene, a filling has a lifespan of 5-12 years, depending upon the type of filling material used.
Tooth sensitivity is the most common early warning sign of enamel loss due to tooth decay. While there could be a number of reasons for this sensation, only your Dentist can diagnose its underlying cause. If a damaged tooth surface is not treated early, your discomfort will increase.