You should expect your filling to last 5-15 years. The broad range depends on your oral hygiene practice and personal habits such as chewing ice, grinding teeth etc. Tooth colored fillings visible when smiling may need to be replaced due to changes in the filling color as a result of staining. The most common need for filling replacement is when the seal/bond between the filling and the tooth becomes poor as a result of tooth decay or trauma. We can offer guidance on how to maximize the lifespan of your new investment.