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  • Title: [The effect of Galla chinensis on the demineralization of enamel].
    Author: Liu Z, Liu T, Li J, Zhou X, Zhang J.
    Journal: Sichuan Da Xue Xue Bao Yi Xue Ban; 2003 Jul; 34(3):507-9. PubMed ID: 12910704.
    Abstract:
    OBJECTIVE: To investigate the effect of Galla Chinensis with or without fluoride on demineralization of enamel. METHODS: Galla Chinensis with or without fluoride and acid buffer were used to treat the samples alternately and the treatment was repeated 8 times. Then the calcium of acid buffer was measured by American PE HTS 7000 plus and the specimens were observed with laser scanning confocal microscope. RESULTS: Compared with the calcium concentration of control group (deionized water or fluoride), the calcium concentration of all tested groups (except the 1 mg/ml group without fluoride) decreased significantly (P < 0.25). There was marked difference in total fluorescence (TF) and average fluorescence (AF) between the tested groups and control group (P < 0.05). As for the area of lesion, only groups without fluoride and the 4 mg/ml group containing fluoride decreased (P < 0.01). Confocal images showed that the zone of red area of tested groups was narrower than that of control group. CONCLUSION: Galla Chinensis can reinforce the resistance of enamel to acid, either with or without fluoride.
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