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Process of tooth whitening and apparatus therefor

  • US 8,602,774 B2
  • Filed: 06/18/2004
  • Issued: 12/10/2013
  • Est. Priority Date: 12/04/2002
  • Status: Active Grant
First Claim
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1. A device for whitening teeth, comprising:

  • a pen-shaped housing having a central axis with proximal and distal ends, the distal end terminating in an applicator tip with a single group of bristles parallel to the axis of the housing;

    a reservoir within the housing containing a peroxide-based tooth whitening composition;

    a manually operated control on the housing coupled to an indexing mechanism operative to dispense a predetermined amount of the tooth whitening composition to the applicator tip;

    a light source disposed on or in the device such that light emitted by the light source impinges on the tooth whitening composition; and

    wherein the light source is disposed on a wall of the reservoir.

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