New chewing-actuated teeth cleaning techniques are provided. In some aspects of the invention, a CleanChew™ is provided, which may comprise bite-actuated tooth- and gum-brushing protrusions and other features, tooth-guiding channels and variable openings with spacers, which openings and spacers may enable the variable bite-actuated release and application of a dentifrice for bite-actuated scrubbing. In further aspects, internal springs and the tension of surrounding material drive bite actuation of protrusions. In other aspects, movable bite-actuated and/or motor-actuated members conform an elastomeric/flexible outer layer with additional sub-features and aid in teeth and oral cleaningIn other aspects, intermediate antechambers, and/or interstitial fluid, gel or other medium, aide in enabling re-sealing an inner chamber following penetration of the CleanChew. This aspect may also be applied to a variety of related arts, including but not limited to pneumatic tires, to aid in remediating gas or fluid leaks from piercing.
