Abstract: A method of treating sleep disorder breathing in a patient, the method comprising in a first step providing a set of oral appliances comprising a first and at least a second oral appliance (30). Each of the first and at least second oral appliances comprises a generally U shaped appliance body including an inner wall (34), an outer wall (36), and a web (38) interconnecting the inner wall and the outer wall. The web has a front section and two arms with trailing ends. The web comprises at least one breathing hole (80) so as to define a total cross sectional area for breathing and the total cross sectional area for breathing of the first oral appliance is larger than the total cross sectional area for breathing of the second oral appliance. In a second step, a patient wears the first oral appliance in a first treatment stage whilst sleeping for a first period of time and in a third step the patient wears the second oral appliance in a second treatment stage whilst sleeping for a second period of time.

Abstract: An orthodontic appliance 1 for promoting development of a dental arch form in a patient who has an underdeveloped dental arch form is disclosed. The appliance 1 includes an arch-shaped base member 2 that is made of a resiliently flexible material, and a teeth engaging member 5 that encloses at least part of the base member 2. The teeth engaging member 5 defines upper and/or lower dental arch receiving channels 46, 47 and is made of a resiliently flexible material that is softer than the base member and is deformable. The appliance 1 has a resting form in which the resilient materials of the base member 2 and the teeth engaging member 5 are in their resting condition. The appliance 1 can be flexed or deformed out of the resting form to fit the underdeveloped dental arch form into the dental arch receiving channel 46, 47.

Abstract: An orthodontic appliance having an outer wall and an inner wall, and a web extending between the inner and the outer walls for treating a class three malocclusion is disclosed. The inner and outer walls and the web define upper and lower channels within which the respective arches of a patient can be received. The inner and outer walls form a mounting arrangement for mounting the appliance on the upper and lower arches of the patient. The outer wall has an upper portion which is offset relative to the lower portion and the upper portion forms an outer spacing formation for holding the buccal mucosa away from the patient's upper arch so that it does not inhibit development of the upper arch. The appliance also includes a tongue elevator for lifting up the tongue to a height above the lower arch.

Abstract: An oral appliance having a base member with a generally U shaped body formed from a thermoplastic elastomer material that is not mouldable at temperatures below about 100° C., the base member having an outer wall portion that defines the outer wall of the appliance and a base extending inwardly from the outer wall that defines a non-mouldable section of the web, the web portion having at least one void formed therein; an inner wall member having a generally U shaped body formed from a material that softens and is mouldable at a temperature below 100° C.