Fig 3. Relative abundances of 9 identified bacterial phyla in 45 plaque samples.

Sequences were matched to Human Oral Microbiome Database using Quantitative Insights into Microbial Ecology (QIIME) for phylum-level taxonomic identification. Data are presented as stacked bars and phyla are ordered by decreasing abundance and stratified by study group and sample occasion (i.e., baseline, 12-week exposure, and 1-month follow-up).