Research Questions If Fluoride Really Fights Cavities

by Kathy Jones on  March 5, 2011 at 8:43 PM Dental News
RSS Email Print This Page Comment bookmark
Font : A-A+

The protective shield fluoride forms on teeth is up to 100 times thinner than previously believed, scientists have revealed.

It raises questions about how this renowned cavity-fighter really works and could lead to better ways of protecting teeth from decay, scientists suggest.
 Research Questions If Fluoride Really Fights Cavities
Research Questions If Fluoride Really Fights Cavities

Frank Muller and colleagues point out that tooth decay is a major public health problem worldwide. Scientists long have known that fluoride makes enamel - the hard white substance covering the surface of teeth - more resistant to decay. Some thought that fluoride simply changed the main mineral in enamel, hydroxyapatite, into a more-decay resistant material called fluorapatite.

The new research found that the fluorapatite layer formed in this way is only 6 nanometers thick. It would take almost 10,000 such layers to span the width of a human hair. That's at least 10 times thinner than previous studies indicated.

The scientists question whether a layer so thin, which is quickly worn away by ordinary chewing, really can shield teeth from decay, or whether fluoride has some other unrecognized effect on tooth enamel. They are launching a new study in search of an answer.

The study appears in ACS's journal Langmuir.

Source: ANI

Post a Comment

Comments should be on the topic and should not be abusive. The editorial team reserves the right to review and moderate the comments posted on the site.
Notify me when reply is posted
I agree to the terms and conditions

More News on:

Tooth Decay Tooth Discoloration Fluorosis 

News A - Z

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

News Search

Medindia Newsletters

Subscribe to our Free Newsletters!

Terms & Conditions and Privacy Policy.

Advertisement
Find a Doctor

Stay Connected

  • Available on the Android Market
  • Available on the App Store

Facebook

Advertisement

News Category

News Archive