Dimensional accuracy of die stone and die silicone an invitro comparative study

Background: Die for making indirect restoration is vital. Die silicone material is user friendly and fast. But does it compare to Die Stone in accuracy. Aim: to compare the accuracy of reproduction of details between Die stone and Die Silicone. Methods: A metal die with known dimensions is made. Impressions are made with Polyether impression material. Dies are made out of Die Stone and Die Silicone. The Dimensions of the reproduced details are measured and compared. Results: Both Die Stone and Die Silicone produce comparable results. Conclusion: As Die Silicone is fast setting and easy to use, when Dies are required at the earliest, like during making of indirect restoration on the Chairside, Die Silicone can be the material of choice.