Innovative Impression Technique for Microstomia Induced by Epidermolysis Bullosa.

A removable partial denture (RPD) is a prosthesis that requires a high degree of precision during impression making. Adequate mouth opening is essential during impression procedures to ensure proper placement and orientation of the impression tray. However, this requirement poses a challenge in patients with microstomia, necessitating modification of conventional impression techniques to complete this crucial step in prosthesis fabrication.  This report describes a modified impression technique for fabricating a conventional RPD in a patient with epidermolysis bullosa and restricted mouth opening. A flexible tray reinforced with composite fibers was used to obtain the preliminary maxillary impression, followed by a definitive impression made using a customized two-part resin-silicone tray.