Tartar, also known as calculus, is a hardened form of plaque that can form on teeth and under the gums. It is caused by the accumulation of minerals from saliva on plaque – the sticky film of bacteria that forms on teeth. If plaque is not removed regularly by brushing and flossing, it hardens and turns into tartar. Tartar not only causes unsightly stains on teeth, but it also contributes to gum disease and cavities. The rough surface of tartar makes it easier for plaque to adhere, creating a vicious cycle of plaque buildup.
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