Enamel Hydroxyapatite Demineralization (N/A)

Enamel hydroxyapatite demineralization refers to the process by which minerals, primarily calcium and phosphate, are lost from the hydroxyapatite crystals that constitute tooth enamel. This process is triggered by acid exposure, typically resulting from bacterial metabolism of dietary sugars or acidic food/beverages, causing a decrease in pH at the tooth surface. The resulting dissolution of hydroxyapatite leads to weakened enamel, increasing susceptibility to dental caries and erosion. While early demineralization can be reversed via remineralization processes, prolonged exposure without intervention can lead to irreversible damage.

Other names

Tooth enamel demineralizationHydroxyapatite dissolutionEnamel caries initiationWhite spot lesion formation

Fluoride promotes remineralization by forming fluorapatite, which is more resistant to acid attack. ACP and CPP-ACP deliver calcium and phosphate ions to the tooth surface to facilitate remineralization. Xylitol inhibits bacterial metabolism, reducing acid production.