Review: tooth-whitening products effective

Oct 19, 2006

A University of Michigan review of 25 studies concludes at-home tooth-whitening products are effective in the short term.

University of Michigan School of Dentistry researchers said most of the studies followed patients for only two to three weeks, so there was not enough data to reach a conclusion on long-term results, WebMD reported Wednesday.

The review found that users of tooth-whitening gels and strips did experience a whitening of their teeth, while those given placebo products recorded no change.

The reviewers said mild to moderate tooth sensitivity and gum irritation were common side effects of the products, especially those containing large amounts of hydrogen peroxide.

However, they warned, the lack of long-term data could obscure possible long-term risks.

"Given the lack of information on long-term benefits and harms, there may be a huge void between the state of knowledge based on the trials sponsored by the manufacturers and the experiences of millions of users of tooth whitening products," they wrote.

"Over-the-counter or dentist-dispensed tooth-whitening products can be recommended to the public but with strong cautions," the review concluded.

Copyright 2006 by United Press International

Explore further: University of Utah professor reframes conversation around domestic violence in new book

Related Stories

Social networks may be exaggerating risk of news events

1 hour ago

(Phys.org)—A trio of researchers affiliated with the Max Planck Institute in Germany has found, via a small study, that news information passed through a social network, via one person to another, becomes ...

Twitter moves to stem violent threats, abuse

2 hours ago

Twitter on Tuesday began implementing a new policy aimed at curbing use of the social network to incite violence, and to crack down on abuse and harassment on the service.

NATO to hold major cyber defense drill in Estonia

2 hours ago

About 400 computer experts will participate in a major cybersecurity drill in Estonia this week as part of NATO's efforts to upgrade its capability to counter potentially debilitating hacker attacks, organizers said Tuesday.

Recommended for you

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.