Abstract: A fastener suitable for connecting two parts of a dental splint together in a prearranged or predetermined spatial relationship to treat a person suffering from a sleep disorder is described. In one form the fastener comprises a base member and a cover member arranged to define a cavity therebetween. A movable connector is located within the cavity, the movable connector interconnecting the two parts of the dental splint. The fastener has an adjustor movably connected to the connector such that the position of the connector is moved in response to movement of the adjustor by adjusting the position of the adjustor, the connector in the form of a hook moves the other part of the dental splint so as to reposition the jaws of a person being treated for the sleep disorder.

Abstract: A dental device is described in the form of a mandibular splint having two arch members interconnected together by a fastener. The fastener of the present invention includes a flange for locating the fastener in the correct location, two tabs arranged to extend in opposite directions from opposite sides of the body of the fastener for connection to two substantially arcuate wings which are pivotally connected to the fastener. The wings are adjustable in orientation both with respect to each other and with respect to the fastener and are adjustable in length. The fastener is also provided with an adjustable hook or similar arrangement for interconnecting the two arches together in use to maintain the jaws of a person suffering from a sleep disorder at a predetermined spaced apart relationship to open the breathing passages to ameliorate the sleep disorder. Opening of the breathing passages reduces the chances of a person snoring as well as treating other sleep disorders.