What will happen if we do not clean our teeth regularly?
It leads to tooth decay.
When we eat food, the sugar component of it attracts bacteria on our teeth. The bacteria start producing enzymes to digest that sugar and in turn leave behind acids and waste products which remain on our teeth as a layer called plaque. The plaque gives a yellowish colour to our teeth. The acid part even makes the teeth material to dissolve, thereby leading to a tooth decay.