You’ve been brushing your teeth for your whole life, but have you been doing it properly?

1. On the outer and inner surfaces, brush your teeth at a 45-degree angle in short half-tooth-wide strokes against the gum line.
2. On chewing surfaces, hold the brush flat and brush back and forth.
3. On inside surfaces of front teeth, tilt brush vertically and use gentle up and down strokes with toe of brush.
4. Brush the tongue in a back-to-front sweeping motion to

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