Occlusal indicator or occlusal testing material is a medium which is used to locate and define occlusal contacts in prosthetic restorations. Various occlusion testing materials have been used over the years to indicate any occlusal interferences. A thorough knowledge of the various occlusal indicators available, prior to their usage is necessary to understand the correct method of use, interpretation of their markings and their limitations. The purpose of this review article is to overview the various materials and methods that have been used as occlusal indicators¹.