mundsperre angolul

lockjaw [lockjaws]▼noun
[UK: ˈlɒk.dʒɔː] [US: ˈlɒk.dʒɔː]

bite-block▼

gag▼[UK: ɡæɡ] [US: ˈɡæɡ]

mouth gag▼

bitelock▼noun