Orthodontic appliance and methods of installation and removal
AssigneeOrmco Corporation
InventorJohn G. Vargas
Life of this patent
Estimating the term…
Abstract
An orthodontic bracket having opposite nonparallel surfaces and further incorporating one or more gripping portions to provide stability in gripping and handling. The gripping portion or portions may be formed as various types of small notches or shelves in the bracket body and preferably enable gripping to take place on opposite parallel surfaces even though surrounding surfaces are nonparallel and may be convergent. Methods of installation and removal involve gripping the appliance with a tool having movable jaws with at least one jaw engaging a gripping portion.
Claims19
An orthodontic appliance mountable on a tooth, said appliance comprising:
- a body with an open-ended, elongate hole having first and second openings at opposite ends and adapted to receive and surround an archwire therein,
- a first outer surface on said body, said first outer surface having an upper edge generally parallel to said elongate hole, and said first outer surface intersecting said upper edge and sloped generally downwardly from said upper edge,
- a second outer surface on said body, said second outer surface positioned opposite to said first outer surface and nonparallel to said first outer surface, and
- a gripping portion extending from said first outer surface below said upper edge, said gripping portion forming a gripping surface which is at least substantially parallel to said second outer surface such that a tool may grip the appliance between said gripping surface and said second outer surface.
A method of installing an orthodontic appliance on the tooth of a patient using a gripping tool having opposed and movable jaws, said appliance including a body with an open-ended, elongate hole having first and second openings at opposite ends and adapted to receive and surround an archwire therein, a first outer surface on said body, said first outer surface having an upper edge generally parallel to said elongate hole and said first outer surface intersecting said upper edge and sloped generally downwardly from said upper edge, a second outer surface on said body, said second outer surface positioned opposite to said first outer surface and nonparallel to said first outer surface, and a gripping portion extending from said first outer surface below said upper edge, said gripping portion forming a gripping surface which is at least substantially parallel to said second outer surface such that a tool may grip the appliance between said gripping surface and said second outer surface, wherein the method comprises:
- positioning one of said jaws on the gripping surface,
- positioning the other jaw on the opposite outer surface,
- moving the jaws together to apply compressive force to the appliance and thereby securely grip the appliance,
- directing the gripped appliance into the patient's mouth, and
- affixing the appliance to the patient's tooth.
A method of removing an orthodontic appliance on the tooth of a patient using a gripping tool having opposed and movable jaws, said appliance including a body with an open-ended, elongate hole having first and second openings at opposite ends and adapted to receive and surround an archwire therein, a first outer surface on said body, said first outer surface having an upper edge generally parallel to said elongate hole and said first outer surface intersecting said upper edge and sloped generally downwardly from said upper edge, a second outer surface on said body, said second outer surface positioned opposite to said first outer surface and nonparallel to said first outer surface, and a gripping portion extending from said first outer surface below said upper edge, said gripping portion forming a gripping surface which is at least substantially parallel to said second outer surface such that a tool may grip the appliance between said gripping surface and said second outer surface, wherein the method comprises:
- positioning one of said jaws on the gripping surface,
- positioning the other jaw on the opposite outer surface,
- moving the jaws together to apply compressive force to the appliance and thereby securely grip the appliance, and
- removing the appliance from the patient's tooth.
Dependencies are inferred from the claim text.