16S rRNA Gene Sequencing The results of the α diversity of the 24-h in-situ oral biofilms showed that the ACE index had a trend of increasing after aging, while the Shannon index trend was to decrease ( Figure 5 a,b), indicating an increasing trend in biofilm richness and a decreasing trend in diversity.
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Effects of Bio-Aging on Mechanical Properties and Microbial Behavior of Different Resin Composites.
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The activity of biofilm metabolism and lactic acid production in each group showed an increasing trend after aging, but there was no significant difference ( p > 0.05). 3.5.