This girl tells how to brush teeths...

How to brush teeth properly: Positioning The Toothbrush

How you hold the toothbrush depends on which part of the tooth you're brushing.

Step 1: Start with outer and inner surfaces, and brush at a 45-degree angle in short, half-tooth-wide strokes against the gum line. Make sure you reach your back teeth.

Step 2: Move on to chewing surfaces. Hold the brush flat and brush back and forth along these surfaces.

Step 3: Once you get to the inside surfaces of your front teeth, tilt the brush vertically and use gentle up-and-down strokes with the tip of brush.

Step 4: Be sure to brush your teeth gently along the gum line.

Step 5: Brush your tongue in a back-to-front sweeping motion to remove food particles and help remove odor-causing bacteria to freshen your breath.