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