Abstract: A mandibular advancement splint)MAS) including dentition engagement units, each having a face for operatively abutting a complementary face of the other, and an opposed dentition engagement face which is adapted to positively engage the maxillary or mandibular dentition. A plane of abutment of the faces is approximately normal to the sagittal plane to facilitate sliding displacement of one engagement unit relative to the other. The MAS further includes at least one elastic element configured to operatively exert a user-configurable urging force between said dentition engagement units, so that the mandibular dentition is biased forward and along said abutment plane relative to the maxillary dentition when the splint is in use.

Abstract: A mandibular advancement splint) MAS) including dentition engagement units, each having a face for operatively abutting a complementary face of the other, and an opposed dentition engagement face which is adapted to positively engage the maxillary or mandibular dentition. A plane of abutment of the faces is approximately normal to the sagittal plane to facilitate sliding displacement of one engagement unit relative to the other. The MAS further includes at least one elastic element configured to operatively exert a user-configurable urging force between said dentition engagement units, so that the mandibular dentition is biased forward and along said abutment plane relative to the maxillary dentition when the splint is in use.

Abstract: Apparatus for the alleviation of sleep apnoea in which dentition engagement units or dental overlays shaped to engage the maxillary and mandibular dentition of a subject each having a laterally located pair of flanges the ends of which almost abut, magnets embedded in said flanges with their like poles adjacent or sinusoidally-shaped extension elements made from shape-memory material having a transition temperature equal to or slightly less than normal body temperature and accommodated in cavities in said flanges provide, respectively, a magnetic repulsion force or expansive force when warmed by body heat sufficient, during sleep-induced relaxation, to displace said mandibular dentition engagement unit or dental overlay forwardly in relation to said maxillary dentition engagement unit, displacing the mandible of the subject and thereby effecting a displacement of the temporomandibular joint.

Abstract: Apparatus for the alleviation of snoring and sleep apnoea comprising a face shield incorporating a cylinder, said cylinder containing a piston or diaphragm connected by a link to a tongue receptacle in which the distal end of the tongue of a subject is captured; said piston being outwardly displaceable within said cylinder by spring means, electrically-operated screw means, physically expansive means, shape-memory material means, or pneumatic means, all said displacement means incorporating rate regulating provisions, to draw said tongue receptacle and said tongue outwardly at a slow, controlled rate during sleep-induced relaxation, thereby reducing any tendency towards airway obstruction.

Abstract: Apparatus for the alleviation of sleep apnoea in which dentition engagement units or dental overlays shaped to engage the maxillary and mandibular dentition of a subject each having a laterally located pair of flanges the ends of which almost abut, magnets embedded in said flanges with their like poles adjacent or sinusoidally-shaped extension elements made from shape-memory material having a transition temperature equal to or slightly less than normal body temperature and accommodated in cavities in said flanges provide, respectively, a magnetic repulsion force or expansive force when warmed by body heat sufficient, during sleep-induced relaxation, to displace said mandibular dentition engagement unit or dental overlay forwardly in relation to said maxillary dentition engagement unit, displacing the mandible of the subject and thereby effecting a displacement of the temporomandibular joint.