Fig. 6From: Microbial differences between dental plaque and historic dental calculus are related to oral biofilm maturation stageMicrobial species differences between plaque, modern calculus, and historic calculus. a The majority of taxa detected are shared between plaque, modern calculus, and historic calculus. b Relative abundance of Socransky’s bacterial complexes in plaque and calculus, presented by age and health status. *p < 0.05 vs. modern plaque, xp < 0.05 vs. modern healthy site calculusBack to article page