The use of composite for posterior teeth restoration competes with amalgams, metallic and ceramic inlays, in the important deterioration cases. Its use is increasing and it's becoming possible because of the current progress of composite material technology and bonding evolution. Even though the dentists seem informed and able to achieve successfully the direct composite technique, the use of composite restoration with indirect or extra-oral method remains uncertain. In this article, we will explore composite systems used at the laboratory for indirect restoration and we will treat, step by step, the composite inlay realization.