Nanostructure of Crystal Hydroxyapatite from Fluorosis Affected Enamel

Nanostructure of Crystal Hydroxyapatite from Fluorosis Affected Enamel

👓 Nasution Abdillah Imron
Nanostructure of Crystal Hydroxyapatite from Fluorosis Affected Enamel

Nanostructure of Crystal Hydroxyapatite from Fluorosis Affected Enamel

✅ Currently, there is little information available to describe the nanostructure of crystal hydroxyapatite, which contributes to influencing the macro characteristics of fluorosis-affected enamel. This research using Scanning Electron Microscopy Energy Disperse X-Ray (SEM EDX)and Powder X-ray Diffraction (XRD). The results of this study have demonstrated Fluor concentration were higher in fluorosis enamel and the surface increasingly roughness and porous. The a-axis on fluorosis-affected enamel 9.3786 Ǻ, and the c-axis 6.8836 Ǻ. The a-axis on normal enamel 9.4148 Ǻ, and the c-axis 6.8791Ǻ. The grain size of fluorosis-affected enamel 19.59 nm and normal enamel 20.30 nm. The microstrain of fluorosis-affected enamel 31.54% and normal enamel was 20%. This study concluded that Fluor, as a mostly electronegative element, decreases the crystallinity and improves the microstrain of hydroxyapatite. These conditions will influence the strength and stability of fluorosis-affected enamel.



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