JAMES KING-HOLMES / SCIENCE PHOTO LIBRARY JAMES KING-HOLMES / SCIENCE PHOTO LIBRARY
Fluoride tooth implant. Fluoride tooth implants (at centre) on an X-ray of a set of teeth. The implants prevent tooth decay by increasing the levels of fluoride in the saliva to 0.7-1.5 milli- grams a litre. The fluoride is released slowly over a period of two years by the implants, which consist of a glass composite pellet. The pellets are attached to a tooth using a composite resin. Only one implant is needed to protect the whole mouth, regardless of which tooth it is attached to. The implants are cheap and easy to fit, making them very cost-effective. The implants were developed by Martin Curzon and Jack Toumba at the Leeds Dental Institute in Britain.
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