This is a review article of relevant research to offer best-practice advice to the practitioner regarding the choice of intracoronal indirect restorative materials. The paper reviews the use of cast gold, a variety of porcelain materials and indirect composite resin materials as inlay materials. Subjects reviewed are the effects on tooth strength, the effect of bonding the material on tooth strength, stress analysis on teeth using different restorative material choice of luting material, wear of the material and its antagonist surface and clinical research outcomes and conclusions.