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US 4,204,325 AGranted
Orthodontic bracket bonding system
AssigneeArroyo Research and Consulting Company
InventorDavid H. Kaelble
Life of this patent
Estimating the term…
Abstract
Orthodontic brackets are adhered to the surface of tooth enamel by activating the surface of an adhesive patch and applying the activated surface to the enamel. The adhesive patch may be preformulated and prefabricated into a solid film sandwiched between easy release protective liners and the film can be applied to the bracket by surface activation as discussed above. The invention also includes removal of the bracket by a deactivation of the surface of the adhesive patch.
Claims11
A method of adhering orthodontic brackets to the surface of tooth enamel comprising the steps of:
- removing a protective cover sheet from the surface of a patch of dry, solid, resilient, continuous film of organic resin adhesive secured to the rear surface of the bracket;
- activating the exposed surface of the dry adhesive film by applying a liquid activating reagent to the surface to produce a temporary state of high tack capable of aggressive bonding to the tooth enamel without affecting the rear surface of the film;
- applying the activated surface of the adhesive film to the surface of the tooth enamel and forming an interfacial bond between the surfaces.
Dependencies are inferred from the claim text.