These are laboratory made restorations usually considered on back chewing teeth that are broken down or to replace existing large fillings. They help give the tooth strength or aid in restoring the tooth shape. Sometime it is considered when a normal filling isn’t strong enough to fill a large hole in a tooth. An inlay fits within the confines of the teeth. An onlay covers the entire chewing surface of the tooth.
What are they made from?
They can be made from ceramic or metal.
What is the procedure?
The procedure involves removing any decayed tooth structure or old fillings, preparing the tooth cavity, taking an impression of the cavity so the lab can fabricate a custom-fit inlay or onlay. Two visits are required to complete the treatment.