Root canal treatment leads to a considerable loss of tooth structure so after completion of root canal treatment it should ideally be followed by a restoration that allows cuspal coverage. This is important as there is a direct relationship between the amount of remaining tooth structure and the ability to resist occlusal forces. The cuspal width to length ratio of 1:2 or more decides whether there is a requirement of a full crown or an onlay. SHARONLAY is a new onlay design providing the necessary reinforcement in a conservative manner and protecting endodontically treated teeth against both vertical and horizontal forces. This case report presents the use of SHARONLAY as a possible alternative for post endodontic restorations.