Featured Research

from universities, journals, and other organizations

Bad Breath? Mouthrinses Work, But Some Cause Temporary Staining

Date:
October 9, 2008
Source:
Wiley-Blackwell
Summary:
Over-the-counter mouthrinses really do put a stop to bad breath. The first systematic review on the effectiveness of mouthrinses shows that they play an important role in reducing levels of bacteria and chemicals that cause mouth odours. Pick which one you use though, because some can temporarily stain your tongue and teeth, warns a new review.

Over-the-counter mouthrinses really do put a stop to bad breath. The first systematic review on the effectiveness of mouthrinses shows that they play an important role in reducing levels of bacteria and chemicals that cause mouth odours. Pick which one you use though, because some can temporarily stain your tongue and teeth, warns this new review from The Cochrane Library.

Related Articles


Bad breath is a very common complaint affecting around half the population in developed countries. The smell is generated by bacteria that accumulate on the tongue and produce sulphur compounds including hydrogen sulphide. This is the same compound that makes rotten eggs smell bad. To combat this, mouth rinses are classified in two categories, those that kill the bacteria producing the sulphur compounds and those that neutralise or mask the odour of these compounds. Antibacterial mouthrinses are widely used to treat bad breath, despite some uncertainty about their effectiveness.

"We found that antibacterial mouthrinses, as well as those containing chemicals that neutralise odours, are actually very good at controlling bad breath,' says lead researcher, Zbys Fedorowicz, who works at the Ministry of Health in Bahrain.

Although the different mouthrinses had similar effects on odours, the researchers point out that products containing chlorhexidine resulted in noticeable but temporary staining of the tongue and teeth, and also can temporarily alter taste sensations.

The review, carried out by a team of Cochrane Researchers, included the results of five separate trials involving 293 participants. The team found that mouthrinses employing antibacterial agents such as chlorhexidine and cetylpyridinium were significantly more effective than placebos in reducing mouth odours, as judged by human noses. Mouthrinses containing chlorine dioxide and zinc were more effective in neutralising odour compounds.

Researchers also noted that more studies are needed to compare the effectiveness of different mouthrinses in treating bad breath. And they say that despite the growing trend for electronic assessment of mouth odours, the human nose should remain the gold standard.

"There's no substitute for a human nose when it comes to sniffing out bad breath," says Fedorowicz.


Story Source:

The above story is based on materials provided by Wiley-Blackwell. Note: Materials may be edited for content and length.


Cite This Page:

Wiley-Blackwell. "Bad Breath? Mouthrinses Work, But Some Cause Temporary Staining." ScienceDaily. ScienceDaily, 9 October 2008. <www.sciencedaily.com/releases/2008/10/081007192431.htm>.
Wiley-Blackwell. (2008, October 9). Bad Breath? Mouthrinses Work, But Some Cause Temporary Staining. ScienceDaily. Retrieved December 21, 2014 from www.sciencedaily.com/releases/2008/10/081007192431.htm
Wiley-Blackwell. "Bad Breath? Mouthrinses Work, But Some Cause Temporary Staining." ScienceDaily. www.sciencedaily.com/releases/2008/10/081007192431.htm (accessed December 21, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Sunday, December 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

The Best Tips to Curb Holiday Carbs

The Best Tips to Curb Holiday Carbs

Buzz60 (Dec. 19, 2014) It's hard to resist those delicious but fattening carbs we all crave during the winter months, but there are some ways to stay satisfied without consuming the extra calories. Vanessa Freeman (@VanessaFreeTV) has the details. Video provided by Buzz60
Powered by NewsLook.com
Sierra Leone Bikers Spread the Message to Fight Ebola

Sierra Leone Bikers Spread the Message to Fight Ebola

AFP (Dec. 19, 2014) More than 100 motorcyclists hit the road to spread awareness messages about Ebola. Nearly 7,000 people have now died from the virus, almost all of them in west Africa, according to the World Health Organization. Video provided by AFP
Powered by NewsLook.com
Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
The Best Protein-Filled Foods to Energize You for the New Year

The Best Protein-Filled Foods to Energize You for the New Year

Buzz60 (Dec. 19, 2014) The new year is coming and nothing will energize you more for 2015 than protein-filled foods. Fitness and nutrition expert John Basedow (@JohnBasedow) gives his favorite high protein foods that will help you build muscle, lose fat and have endless energy. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins