Altering Internal Surface of Putty Impression Materials for Better Recording of Tooth Preparation Margins

This article describes the clinical procedures for a modified putty-wash impression technique, in which the hydraulic pressure induced from planned flowing of wash material in the inner surface of putty impression toward the vestibule, pulls over the gingival tissues covering finishing line. This simple method reduces the need to use a retraction cord in normal-depth finishing lines in gingival sulcus.