Patents by Inventor Robert L. Nixon

Robert L. Nixon has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6659772
    Abstract: The present invention relates to a method for preparing provisional veneers for human teeth. An impression matrix of the teeth-receiving provisional veneers is created and the teeth prepared by removal of the enamel to an appropriate depth. The impression matrix is then trimmed to expose the cervical portion of the prepared teeth. The shells of the impression matrix corresponding to each of the prepared teeth are filled with a flowable composite resin and the filled impression matrix is seated over the prepared teeth. The excess flowable composite resin is removed from the cervical portion of the prepared teeth and the remaining flowable composite resin is cured to form the incisal portion of the provisional veneers. The cervical portion of the provisional veneers is then free-form sculpted by applying a sculptable composite resin to the prepared teeth, then curing the sculptable composite resin. The provisional veneers are then fine-finished and polished.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: December 9, 2003
    Assignee: Cosmedent, Inc.
    Inventors: Robert C. Margeas, Robert L. Nixon
  • Publication number: 20020119424
    Abstract: The present invention relates to a method for preparing provisional veneers for human teeth. An impression matrix of the teeth-receiving provisional veneers is created and the teeth prepared by removal of the enamel to an appropriate depth. The impression matrix is then trimmed to expose the cervical portion of the prepared teeth. The shells of the impression matrix corresponding to each of the prepared teeth are filled with a flowable composite resin and the filled impression matrix is seated over the prepared teeth. The excess flowable composite resin is removed from the cervical portion of the prepared teeth and the remaining flowable composite resin is cured to form the incisal portion of the provisional veneers. The cervical portion of the provisional veneers is then free-form sculpted by applying a sculptable composite resin to the prepared teeth, then curing the sculptable composite resin. The provisional veneers are then fine-finished and polished.
    Type: Application
    Filed: February 23, 2001
    Publication date: August 29, 2002
    Inventors: Robert C. Margeas, Robert L. Nixon