Abstract: The present invention comprises an arrangement for securing a teeth support, in the form of a bite plate, in a predetermined position in relation to a person's arranged set of teeth and with said bite plate being adapted to carry a number of clamp devices, intended to fixedly but easily detachably be co-operable with one or more teeth, included in said set of teeth. Each one of said clamp devices has a retention bracket carried by the bite plate. A screw co-operates with a thread in the retention bracket and extends freely through the bite plate. One end portion of the screw is formed as a screw head and the other end potion thereof is adapted to present a tooth-adapted abutment surface. Said abutment surface is, by turning the screw in a first direction, pressable against a tooth surface for securing the bite plate and in relation to said tooth and, by turning the screw in a second opposite direction, loosenable from the tooth surface for a loosening of the bite plate.

Abstract: In order to prevent moisture from condensing into water in an intermediate space between an outer hermetic shell and an inner partition of an airplane, or for removing any water present in the intermediate space, dry air having a relative humidity of less than 50% is directed into the intermediate space from a dehumidifying device which accepts humid air from inside the passenger compartment.