1. Inlays:

An inlay is a premolded filling fitted into the grooves of a tooth and do not extend over the cusps of tooth. This is one of the restorative methods used to repair a tooth after it sustains harm from injury or decay that does not affect the cusps of the tooth  

Indications: Inlay is used in case of broken teeth or superficial injuries

2. Onlays:

An onlay is a method used to repair a tooth that has more extensive damage affecting the cusp or tips of the tooth, or potentially the biting surface

Indications: applied in the case of teeth damage wider than 2 tooth surfaces or more


Advantages of inlays and onlays:

  • Maximum protection of tooth tissue
  • High aesthetics
  • Good stability 
  • Weak teeth protection

Disadvantages of inlays and onlays:

  • Time-consuming process
  • Many more margins exposed, allowing more potential contact with bacterial plaque