Xylitol prevents the decalcification by inhibiting the translocation of dissolved calcium(Ca2+) and phosphate(PO43–) ions from lesions.
Xylitol may act as Ca2+ ion carrier supplying the middle and deep layers with Ca2+ ions from the oral environment, thus enhancing remineralization by providing the Ca2+ ions for crystal repair.
It may also accelerate remineralization by lowering the diffusion coefficients of calcium and phosphate ions within the demineralized layers.
The greater extent of mineralization in seen in deeper layer.
Journal of Electron Microscopy 52(5): 471–476 (2003)
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