Hello. I'm a dental student and I'm currently trying to take a good two-step C type silicone impression, however once I remove the tray from the typodont I notice tearing in several interdental septae. I can't find any information about the causes of this defect in textbooks, and none of the teachers mentioned this problem. Maybe you could guess what may cause such a defect of the impression? I would be really grateful.
Asked On : Tue, 9 Apr 2013