Answer: Plaque
Explanation:
A plaque is squashy film (substance) that generally forms on our teeth, comprised of numerous millions of bacteria. These bacteria are very effective and it can cause the tooth to decay, gum disease and several other types of dental problems. They are needed to be eliminated everyday by brushing teeth and cleaning it.
It occurs all over the mouth, but it usually gets concentrated in and around the deeper and narrower molar openings.
It forms when the food particles remained attached to the teeth and gums, and causes a stinky smell.
