How long do inlay and onlay restorations usually last, and what factors can shorten their lifespan?

How long can I expect inlay and onlay restorations to last, and what habits or conditions might cause them to fail sooner?

The durability of an inlay or onlay often depends on how well the tooth and surrounding tissues are maintained after treatment. With consistent dental care, these restorations can remain stable for many years. Excessive wear, grinding, or poor hygiene habits may increase the risk of damage or failure over time.