The Scottish Mail on Sunday

WHAT’S THE DIFFERENCE . . .

...between plaque and tartar?

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BOTH plaque and tartar will contribute towards tooth decay if left untreated.

Plaque is essentiall­y a sticky collection of bacteria that forms a film on the teeth. Over time, the bacteria interact with food we eat to produce acids, which destroys enamel and leads to gum disease.

Tartar, also known as calculus, is what happens when plaque builds up so much that it hardens and turns yellow, speeding up the developmen­t of gum disease.

The substance is so tough that it can be removed only by a dentist. Plaque, however, can be washed away with regular brushing and visits to a dental hygienist.

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