Method and apparatus for filling a tooth canal
Patent 5092773 Issued on March 3, 1992. Estimated Expiration Date: 
November 20, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 20, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMethod for bonding of restorative materials to a tooth Patent #: 4874315 InventorAssigneeApplicationNo. 615789 filed on 11/20/1990US Classes:433/224, Endodontic433/215, METHOD OR MATERIAL FOR TESTING, TREATING, RESTORING, OR REMOVING NATURAL TEETH433/226, By filling, bonding or cementing606/16With optical fiberExaminersPrimary: O'Connor, Cary E.Attorney, Agent or FirmForeign Patent References
International ClassA61C 005/02AbstractTo fill a canal, an optical fiber having a low melting point is introduced into the canal and radiation is conducted through the fiber to melt the fiber and form the filling. The fiber may be coated with a material which will be melted by the radiation and will bond to the canal wall. Fillings and coatings are formed on tooth or bone tissue by projecting toward a surface of the tissue two starting components which when combined and exposed to light of a selected wavelength undergo a photochemical reaction to form a calcium containing product, and causing light of the selected wavelength to impinge on the components at least partially before they reach the surface in order to create the reaction and cause the resulting calcium containing product to bond to the tissue. | |
