a jaw - joint protective device is provided for whitening and brightening a wearer &# 39 ; s teeth while protecting the teeth , tongue , lips , jaw , and other delicate structures of the vital cranial triad from injury and / or for supporting the condyle of the temporomandibular joint in a relatively fixed position thereby stabilizing the jaw and the vct during head contact activity , exercise , physical rehabilitation , c - force acceleration , teeth grinding disorders and sleep apnea and or permit the components of a vct disorder to be realigned for proper healing . this device is an over - the - counter purchased , boil and bite device for whitening at least one tooth while protecting the jaw - joint , providing maxillary and mandibular teeth seats for protection of the mouth and / or healing of the vct . this invention provides a device for customized fitting that is purchased over - the - counter that is versatile for protecting not only the mouth but also a larger area , the vital cranial triad which includes the tmj , while at the same time allows for audible speech , reduces sleep disorders of snoring , grinding and clenching of teeth with additional benefits .