Patent ID: 7074042

Claim:
A dental bleaching device in the shape of a dental tray suitable for placement over a person's teeth in order to carry out dental bleaching, comprising: a barrier layer comprising a moisture-resistant material in the shape of a dental tray comprising a front side wall, a rear side wall, and a trough between said front and rear side walls; and a bleaching layer within said trough comprising a substantially solid dental bleaching composition having a first surface adjacent to said barrier layer and a second surface that has increased adhesiveness to teeth when moistened by saliva or water, said bleaching layer being in the shape of a dental tray and having a rigidity so as to at least partially contribute to maintaining said dental bleaching device in the shape of a dental tray piror to placing said bleaching device over a person's teeth, said dental bleaching composition comprising: at least one dental bleaching agent; and at least one tooth adhesion agent that at least partially contributes to said increased adhesiveness to teeth when said dental bleaching composition is moistened by saliva or water.