An oral health care material and a teeth cleaning agent composition are disclosed. The oral health care material is made of zinc oxide grains, where each is selected from the group consisting of zinc oxide crystalline nanograins, zinc oxide nanorods, zinc oxide hollow fibers, and a mixture thereof, wherein the diameter of each of the zinc oxide crystalline nanograins is 25 nm-200 nm, the cross-sectional diameter of each of the zinc oxide nanorods is 50 nm-1000 nm, the cross-sectional diameter of each of the zinc oxide hollow fibers is 500 nm-3 μm and its nanograin size is 20 nm-100 nm.
