https://h3b-120inhibitor.com/q....uantitative-analysis
SPSS 23.0 software package had been utilized to determine the correlation between root seriousness and area roughness. Outcomes After 50 days of cleaning, the hardness of group B, C and D had been substantially enhanced (P less then 0.05), and was considerably better than that of group A (P less then 0.05). The hardness ended up being the highest in-group D after 50 times of brushing, followed closely by group C and B, with significant difference(P less then 0.05). The area roughness result
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