Dental tissue cutting, drilling and fusing system
June 26, 2011. 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 References 3821510 Method of surgical treatment using laser emission and apparatus for realizing same Device for preventing tooth decay by laser beam irradiation and method of preventing tooth decay by use of the same Apparatus for adjusting the focal point of an operating laser beam focused by an objective Contra angle handpiece for dental treatment by laser beams Method for removing incipient carious lesions and/or stain from teeth Manipulator for laser knife Liquid cooled neodymium-phosphate glass-impulse laser particularly for medical applications High power laser energy delivery system Pulsed laser for medical applications InventorsApplicationNo. 725237 filed on 06/26/1991US Classes:606/17, With beam shaping or redirecting (e.g., lens)606/16With optical fiberExaminersPrimary: Hafer, Robert A.Assistant: Owens, Terry J. Attorney, Agent or FirmForeign Patent References
International ClassA61C 005/00AbstractA method and apparatus are described for cutting, drilling, ablating, fusing or altering dental tissues including enamel, dentine, bone, and cementium among others. Far infrared radiation of wavelengths between 2.5 and 3.2 microns are used to selectively affect dental tissue, where the radiation energy density determines whether cutting, fusing or other effects are produced. Either continuous wave or pulsed radiation can be used, a suitable IR source being an Erbium YSGG laser having an output wavelength of 2.79 microns. The exposed dental tissue is removed, fused, or otherwise affected without damage to the surrounding tissues depending on the duration of the exposure. Medical and dental applications include the removal of carious lesions and the preparation of a carious lesion for filling with an appropriate filler material, the cutting or sectioning of healthy tissue, the sealing of cracks and fissures in the hard tissues, the fusing of enamel surfaces in order to prevent decay, the removal of calculus deposits, the preparation of implant sites, the application of coatings chemically similar to the dental hard tissue by fusion induced by the radiation, sealing of root surfaces in the treatment of sensitive teeth, the sterilization root surfaces and many more natural extensions of the invention.Other References
| |
