Plaque and tartar are biological substances that can form on the enamel of your teeth. They are both linked to tooth decay and gum disease.
Plaque is a biofilm that sticks to the surface of your teeth. It can host bacteria that cause tooth decay and gum infections. Plaque can be removed by regular brushing and flossing.
Tartar is a hard substance that forms on your teeth along the gumline. Tartar is very hard and can only be removed by a trained hygienist using special tools. If the tartar isn’t removed, it can irritate your gums and make them vulnerable to infection.