Abstract:Artificial sound enamel and caries enamel lesions were prepared. The sound enamel did not emit fluorescence in the visible spectrum. The spectrum of Zn(II)-protoporphyrin-9 biofilm from caries enamel lesions showed the fluorescence emitted by Zn(II)-protoporphyrin-9, with two main peaks at 630 and 690 nm. The luminescence properties of protoporphyrin-9 change depended on the amount of Zn(II). The increase in fluorescence intensity as Zn(II)-protoporphyrin-9 penetrated deeper to 1.75 mm was appropriate for the … Show more
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