Synchrotron X-ray diffraction characterization of healthy and fluorotic human dental enamel
- Colaco, M. V.
- Barroso, R. C.
- Porto, I. M.
- Gerlach, R. F.
- Costa, F. N.
- Braz, D.
- Droppa, R., Jr.
- de Sousa, F. B.
DOIAbstract
With the introduction of fluoride as the main anticaries agent used in preventive dentistry, and perhaps an increase in fluoride in our food chain, dental fluorosis has become an increasing world-wide problem. Visible signs of fluorosis begin to become obvious on the enamel surface as opacities, implying some porosity in the tissue. The mechanisms that conduct the formation of fluorotic enamel are unknown, but should involve modifications in the basic physical-chemistry reactions of demineralization and remineralisation of the enamel of the teeth, which is the same reaction of formation of the enamel's hydroxyapatite (HAp) in the maturation phase. The increase of the amount of fluoride inside of the apatite will result in gradual increase o...
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