How To Brush 1. Outside of front teeth. Hold your toothbrush at a 45° angle where your teeth and gums meet. Move the brush back and forth in a gentle motion. 2. Outside and inside of back teeth. Use the short, angled brush strokes. 3. Inside of front teeth. Tilt the brush vertically and make up-and-down strokes. 4. Chewing surfaces. Hold the brush flat and use a gentle motion. How To Floss 1. Setting up and inserting floss. Pull about 18 inches of floss from the dispenser and wrap the ends around your middle fingers. Hold floss tightly, using your fingers to gently guide the floss between the teeth. 2. Removing plaque. Holding the floss tightly against the tooth, move the floss away from the gum, scraping the floss up and down against the side of the tooth. 3. Cleaning the whole mouth. Repeat flossing procedure on each tooth, upper and lower, using a clean segment of floss. 4. Flossing back teeth. Don't forget to floss behind back teeth or where there is no adjacent tooth.