зубной камень означает в английский

dental calculus [dental calculi]▼(crust on the teeth)
noun
[UK: ˈden.tl̩ ˈkæl.kjʊ.ləs] [US: ˈden.tl̩ ˈkæl.kjə.ləs]

plaque [plaques]▼(accumulation of biofilm, or bacteria, on teeth)
noun
[UK: plɑːk] [US: ˈplæk]