Most recently the cheek/lip retractor mouthpiece has been used for the popular party board games: Hasbro’s Speak Out, Watch Ya’ Mouth and Watch Yo Mouth. This mouth guard comfortably acts as a mouth opener/expander.
Originally it was designed to effortlessly and comfortably pull cheeks away from the mouth and hold them in place, leaving teeth exposed to easily complete a tooth whitening or dental procedure
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