Abstract: Compositions for treating or preventing dental caries and/or middle ear infections. These compositions comprise antibodies to dental caries and/or antibodies to bacteria causing middles ear infections and/or an agent preventing the adhesion, accumulation or reporduction of the pathogens of tooth or middle ear. The preferred agent is xylitol. Methods for using these compositions are also included.

Abstract: The invention relates to an administration device for a method to prophylactically treat the mouth region of children, comprising a part intended to be positioned in the mouth, which part is provided with a dispensing container for an active agent, and having at least one aperture allowing the entrance of saliva into the dispensing container and its exit therefrom, and a part to remain outside the mouth, comprising a hand held member, whereby a filler opening concentrically opening towards the hand held member, is arranged in the area between both parts. The invention is characterized in that the hand held member and a cover of the filler opening, which cover is an integral part of the hand held member, are manufactured as one uniform unit with the rest of the administration device.

Abstract: An intraoral administration device having an elongated, substantially plate-like arcuate oral screen designed to conform to the teeth and intended to be accommodated in the space between the teeth and the lips. The oral screen includes containers for the agent to be administered intraorally, which containers have provision for allowing the free entrance of saliva into the container and its exit therefrom. An administration system using the administration device and an active agent, such as for example an agent against caries or otitis media is also contemplated.