- Various procedures are used to reline removable dentures. Some of these involve the use of wax to seal the denture to the cast for flasking and processing. This necessitates the use of high temperatures for an extended period and involves the risk of warpage of the denture. It is also relatively time-consuming. This article describes a procedure that uses polyvinyl siloxane instead of wax. The procedure is more time efficient and decreases the risk of warpage of the denture.