HOME/ABOUT  Prayer  SCOTUS  ProLife  BangList  Aliens  StatesRights  ConventionOfStates  WOT  HomosexualAgenda  GlobalWarming  Corruption  Taxes  Congress  Fraud  MediaBias  GovtAbuse  Tyranny  Obama  ObamaCare  Elections  Polls  Debates  Trump  Cruz  Kasich  OPSEC  Benghazi  InfoSec  BigBrother  IRS  Scandals  TalkRadio  TeaParty  FreeperBookClub  HTMLSandbox  FReeperEd  FReepathon  CopyrightList  Copyright/DMCA Notice 

Please keep those donations coming in, folks. Our 2nd quarter FReepathon is off to a great start and we have a chance of getting 'er done early! Thank you all very much!!

Or by mail to: Free Republic, LLC - PO Box 9771 - Fresno, CA 93794
Free Republic 2nd Quarter Fundraising Target: $88,000 Receipts & Pledges to-date: $39,804
45%  
Woo hoo!! And the first 45% is in!! Thank you all very much!! God bless.

Keyword: nacre

Brevity: Headers | « Text »
  • Shell extract helps rebuild pearly whites

    04/12/2013 8:25:59 PM PDT · by neverdem · 24 replies
    Chemistry World ^ | 10 April 2013 | Emma Stoye
    Researchers in China have shown that the organic component of mother of pearl can help repair damaged teeth, by acting as a template for the mineralisation of tooth enamel.Tooth enamel is made up of rod-like crystals of hydroxyapatite, a calcium phosphate mineral. It is the hardest tissue in the body, but is susceptible to erosion by food and bacterial acids. Once gone, it never naturally reforms, and cavities must be fixed using manmade materials. Methods of artificially rebuilding enamel often involve extreme temperature, pressure or pH conditions that make them impractical for clinical use.Researchers from the Chinese Academy of Sciences...