Apparatus is for user having teeth. Apparatus includes upper oral deliverymouthpiece and loweroral delivery mouthpiece each configured to be positioned in the mouth of theuser. Upper oraldelivery mouthpiece includes upper bendable assembly configured to urge upperoral deliverymouthpiece to conform, at least in part, to a curvature of the upper teeth ofthe user. Lower oraldelivery mouthpiece includes lower bendable assembly configured to urge loweroral deliverymouthpiece to conform, at least in part, to a curvature of the lower teeth ofthe user.