CARE OF TEETH Brushing Brush your teeth two times a day. Get a new toothbrush every three months. 1. Brush the outside of the teeth, side to side moving across the teeth in circles. Clean gums too. 2. Scrub the top of the teeth gently by moving the brush back and forth. 3. Clean the inside surface of the teeth in a circular motion. 4. Clean the inside surfaces of your front teeth using up and down movements. Flossing 1. Cut about 18 inches of floss and wrap it around your middle fingers. 2. Slide floss between your teeth until it reaches the gum. 3. Move the floss up and down the tooth. Use clean floss as you go.