This study was carried out to measure the dimensional changes in silicone impression material, which can affect the fitness of the prosthesis. Using both single and double mix techniques, 20 impression samples for each of 3 different proprietary silicones, Xantopren-H, President and Fulldent, were made. Selected measurements were made on the stone casts made from each impression. In all 3 cases...

PURPOSE This study compared the accuracy of an abutment-framework (A-F) taken with open tray impression technique combining cementon crown abutments, a metal framework and resin cement to closed tray and resin-splinted open tray impression techniques for the 3-implant definitive casts. The effect of angulation on the accuracy of these 3 techniques was also evaluated. MATERIAL AND METHODS Thre...

We aimed to evaluate the trueness of digital and conventional impression techniques based on different angles distances between implants deviation caused by angle distance parameters varying implants. Eight were placed in a polyurethane edentulous mandibular model at distances. After obtaining 3-dimensional (3D) reference using an optical scanner, was scanned with three intraoral scanners: Cere...

Theory means observation based on principles and concept is the application of these theories. Impression forms an important virtue for the success of complete denture treatment and hence the concepts of impression should be properly understood. The importance of the in-depth study of history of impression making for complete dentures lies in the thorough understanding of different types of tec...