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 1 for promoting development of a dental arch form in a patient. 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 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. When deformed the appliance 1 exerts a return force that urges the underdeveloped dental arch to expand.

Abstract: An orthodontic appliance for treating a malocclusion such as a class 3 malocclusion is disclosed. The appliance comprises an outer wall and an inner wall, and a web extending between the inner and the outer walls. 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 orthodontic appliance 1 for promoting development of a dental arch form in a patient. 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 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. When deformed the appliance 1 exerts a return force that urges the underdeveloped dental arch to expand.

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 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 that is particularly useful for correcting a class occlusion is disclosed. The appliance includes a mounting arrangement for mounting over an upper arch of a user having a front region and two arm regions extending rearward from the front region. The mounting arrangement includes an outer wall and an inner wall and a web extending there between. The outer wall, the web and the inner wall collectively define an upper channel within which the upper arch and teeth of a user are received to mount the appliance. They also define a lower channel for receiving the lower arch and teeth. The outer wall has an upper portion spaced forward of the upper arch teeth and gums forming an outer spacing formation for holding the buccal mucosa away therefrom. The appliance also includes a tongue elevator on a lower portion of the inner wall for raising position corresponding to an arch form will tend to return to the desired arch form. Further the resilient flexibility assists fitting of the appliance.

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.