Use of aluminum foil to facilitate open-tray implant impressions

Abstract

When the conventional impression technique is selected over digital optical scanning for multiple implants, the open tray impression technique has been recommended over the closed tray or transfer technique in situations where 4 or more implants are present.1,2 The open tray technique incorporates a large opening in the impression tray that accommodates the complete-arch impression copings.3 While loading the impression material into the tray, preventing the material from escaping through the opening is often difficult.