There is the added benefit, the ad points out, of removing 30 percent more plaque with a new toothbrush.

Brushing removes plaque, a film of bacteria that clings to teeth.

For them, the goal is to find a way to reverse the progression, removing plaque in their brains and restoring the ability to think.

Floss is used to remove plaque, food particles, and bacteria from between your teeth.

Brushing your tongue helps remove plaque, which can cause bad breath and help bacteria grow.

"This means a brush is firm enough to remove plaque but not tear up gums," he says.

We all know the importance of flossing every day to help remove plaque from places where your toothbrush cannot reach.

A toothbrush is able to remove most plaque, except in areas between teeth.

"It removes plaque, which can easily be removed by hand if a patient wants to do it."

Like natural teeth, dentures must be brushed daily to remove food and plaque.