Nanostructure of Crystal Hydroxyapatite from Fluorosis Affected Enamel

Anglický jazyk

Nanostructure of Crystal Hydroxyapatite from Fluorosis Affected Enamel

Vydavateľstvo: LAP LAMBERT Academic Publishing
Rok vydania: 2012
Formát: Paperback
Rozmer: 220 x 150 mm
Jazyk: Anglický jazyk
ISBN: 9783659244759

Na objednávku, dodanie 2-4 týždne

45.36 €

bežná cena: 50.40 €

O knihe

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 ¿, and the c-axis 6.8836 ¿. The a-axis on normal enamel 9.4148 ¿, and the c-axis 6.8791¿. 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.