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Process of tooth whitening and apparatus therefor

  • US 10,285,790 B2
  • Filed: 12/10/2013
  • Issued: 05/14/2019
  • Est. Priority Date: 06/19/2003
  • Status: Active Grant
First Claim
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1. A process of whitening a tooth, comprising the steps of:

  • providing a delivery device having a push-button, twist-turn or lever, and wherein a single incremental movement of the push-button, twist-turn or lever mechanically dispenses a predetermined amount of a whitening composition to an applicator tip;

    dispensing the predetermined amount of the whitening composition to the applicator tip by moving an expelling platform incrementally in association with a ratcheting mechanism;

    applying the predetermined amount of the whitening composition disposed on the applicator tip to a tooth to be whitened;

    exposing the whitening composition to light emitted from a phosphorescent light source; and

    allowing the whitening composition to remain in contact with the tooth for a period of time sufficient to whiten the tooth.

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