الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Summary and Conclusions
White spot lesions are considered the earliest evidence of dental
caries, which can be caused by an imbalance between demineralization and
remineralization processes. As demineralization progresses, the intercrystalline spaces enlarge, and the lesion becomes more visible. This can
be achieved through remineralization, to stop disease progression, and thus
concomitantly improve aesthetics, as well as strength and function. This
study aimed to evaluate the effect of two different commercially available
remineralizing agents and a resin infiltrate on the surface composition as
well as color change of artificially induced white spot enamel lesions. A
demineralizing solution was applied to the tooth surfaces to create carieslike subsurface enamel lesions, with an intact surface, to simulate early
enamel lesions.
The results revealed a smooth enamel surface with few cracks before
demineralization. However, after demineralization, irregular surface and
dissolved prism cores, denoting surface dissolution were detected on the
surfaces of artificial carious lesions. Both remineralizing agents, Curodont
Repair and MI Paste Plus filled up defects and micropores on
demineralized tooth structure.
The results showed lower calcium and phosphorous levels for
demineralized enamel surfaces, compared to a higher level in control
enamel. Results also revealed an increase in Ca (27.6±0.3) and P (2 ± 0)
percentage for Demineralized enamel treated with Curodont Repair.
Higher carbon percentage was recorded in Control, and Demineralized
enamel surfaces. It is worth mentioning that enamel surfaces treated by
Icon and MI Paste Plus revealed a higher carbon percentage compared to
Curodont Repair.
Summary and Conclusions
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Comparing different surface treatments, demineralized enamel
revealed the highest significant color change values. All treatments of
demineralized enamel significantly restored the tooth color, whereas ICON
revealed the highest color difference values of all three treatments,
followed by MI Paste Plus, then Curodont Repair which showed the lowest
change in color (ΔE). The results revealed that demineralized enamel
surfaces showed the highest color change values.