Mouthpiece made of syringe renders gastroscopy in patients with partial trismus

Background: For performing safe endoscopy it is necessary to use a mouthpiece. In patients who are unable to open their mouths to a satisfactory degree for the introduction of a mouthpiece endoscopic procedures fail. Partial trismus may hamper oral access to the upper gastrointestinal tract. Materials and Methods: The barrel of a disposable plastic syringe was cut about 2 cm from where the plunger enters it. This short piece was put within the teeth. One flag looked towards the philtrun and the other to the chin. On the inner side there was no flange and on the outer side the flags of the tube prevented the disp…