An oral appliance that attaches to molars or bicuspids and that has the capability for side-to-side expansion and contraction in one unit as a self-stopping mechanism. Further, one embodiment can be activated to compress or expand and be deactivated in two planes of side-to-side or front-to-back, along three different arms/bridges respectively. This is to say that one arm can compress front-to-back while the other arm expands, the jaw/teeth front-to-back, simultaneously. With proper arrangements and anchorage preparation the device shown and described can move front teeth forward or backward or back teeth forward or backward independently on either side of the mouth.

An oral appliance that attaches to molars or bicuspids and that has the capability for side-to-side expansion and contraction in one unit as a self-stopping mechanism. Further, one embodiment can be activated to compress or expand and be deactivated in two planes of side-to-side or front-to-back, along three different arms/bridges respectively. This is to say that one arm can compress front-to-back while the other arm expands, the jaw/teeth front-to-back, simultaneously. With proper arrangements and anchorage preparation the device shown and described can move front teeth forward or backward or back teeth forward or backward independently on either side of the mouth.

Certain embodiments of the present invention relate to methods and apparatus for positioning at least one bracket element with respect to a respective tooth of a subject. Particularly, although not exclusively, certain embodiments of the present invention relate to apparatus for positioning at least one bracket element at a desired location proximate to at least one respective tooth of a subject; the apparatus comprising a support body supporting and integrally formed with at least one support arm, the support arm being arranged to locate a respective bracket element at a desired location with respect to a respective tooth; and at least one locating element for locating the support body relative to at least one tooth of a subject.

Certain embodiments of the present invention relate to methods and apparatus for positioning at least one bracket element with respect to a respective tooth of a subject. Particularly, although not exclusively, certain embodiments of the present invention relate to apparatus for positioning at least one bracket element at a desired location proximate to at least one respective tooth of a subject; the apparatus comprising a support body supporting and integrally formed with at least one support arm, the support arm being arranged to locate a respective bracket element at a desired location with respect to a respective tooth; and at least one locating element for locating the support body relative to at least one tooth of a subject.

A method and apparatus, for treating plaque and calculus in the mouth cavity—particularly on teeth—are disclosed. The apparatus—and accordingly the method—is comprised of introducing at least one first-component comprising a material with a redox potential for preventing anions precipitation; and introducing at least one second-component comprising a material with a redox potential for preventing cations precipitation.

An orthodontic mould to be applied to one or more of a patient's teeth, the mould having: at least one cavity configured to be positioned adjacent a respective tooth of the patient, with the at least one cavity to receive a settable material to provide a projection, the projection to be fixed to a respective one of the teeth; and a rod or stint mounted in the mould and extending from the at least one cavity so as to be secured to the projection when the settable material is set.

An orthodontic mould to be applied to one or more of a patient's teeth, the mould having: at least one cavity configured to be positioned adjacent a respective tooth of the patient, with the at least one cavity to receive a settable material to provide a projection, the projection to be fixed to a respective one of the teeth; and a rod or stint mounted in the mould and extending from the at least one cavity so as to be secured to the projection when the settable material is set.

Disclosed are example embodiments of methods and systems for improving teeth appearance and repositioning of the teeth. One of the systems is an appliance that includes: an outer shell with simulated teeth that approximate a final teeth arrangement; and inner cavities configured to receive a patient's teeth and to incrementally reposition the teeth toward the final teeth arrangement.

Disclosed are example embodiments of methods and systems for improving teeth appearance and repositioning of the teeth. One of the systems is an appliance that includes: an outer shell with simulated teeth that approximate a final teeth arrangement; and inner cavities configured to receive a patient's teeth and to incrementally reposition the teeth toward the final teeth arrangement.

An appliance comprises a passive component and an active force generating component, in which the active force generating component is configured to react to a stimulus and generate tooth movement forces. In some embodiments, the passive component is configured to deflect when placed on one or more teeth and generate tooth movement forces, which are combined with tooth movement forces of the force generating component. In some embodiments, the passive component comprises a polymer which is less reactive to the stimulus than the force generating component. The force generating component can be configured to increase force to one or more teeth at an appropriate time.