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Clinical Trial
. 1992 Feb;123(2):57-60.
doi: 10.14219/jada.archive.1992.0055.

Patient-applied tooth whiteners

W R Howard  1
Affiliations
Clinical Trial

Patient-applied tooth whiteners

W R Howard. J Am Dent Assoc. 1992 Feb.

Abstract

A double-blind clinical trial compared the efficacy and safety of two popular carbamide peroxide tooth whitening products with a placebo agent. After six weeks, both study products produced significantly whiter teeth than did the placebo agent.

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