Method and apparatus for electrically enhanced bone growth and tooth movement
Patent 4153060 Issued on May 8, 1979. Estimated Expiration Date: 
March 15, 1998. 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.
March 15, 1998. 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 592878 1389662 3092907 3842841 3918459 InventorsAssigneeApplicationNo. 05/886775 filed on 03/15/1978US Classes:607/51, Hard tissue (e.g., bone)433/215, METHOD OR MATERIAL FOR TESTING, TREATING, RESTORING, OR REMOVING NATURAL TEETH433/32, Having heater or electrode607/64, Constant level output607/75Galvanic (i.e., battery-like direct current signals)ExaminersPrimary: Kamm, William E.Attorney, Agent or FirmInternational ClassesA61C 7/00 (20060101)A61N 1/05 (20060101) A61N 1/32 (20060101) AbstractDisclosed is a method and apparatus for electrically stimulating bone growth and tooth movement in the mouths of mammals. A positive electrode is placed on the gum surface adjacent the bone structure which is to be resorbed. A negative electrode is placed on the gum surface adjacent the bone tissue which is to be accreted or built up. A current source is connected, such that a small current flows between the electrodes, which has the effect of stimulating bone growth in a specific direction. In a preferred embodiment, the electrodes are placed on the gum surface adjacent a tooth, the positive electrode on the side towards which the tooth should move, and the negative on the side from which the tooth will move. Application of a small current to the electrodes will enhance the repositioning of the tooth in conjuction with normal orthodontic practices. | |
