Brushing and flossing are frequently touted as ways to keep your teeth healthy, but there also are habits that you should avoid to keep your pearly whites in tip-top shape.

The American Dental Association recommends:

• Don’t bite nails, which can harm your jaw and chip your teeth.
• Don’t brush your teeth too vigorously, which can damage teeth and gums. Brush gently with a
  soft-bristled brush.
• Avoid clenching and grinding your teeth, which can lead to jaw pain and cracks in the teeth.
• Don’t crunch or chew ice, which can break a tooth.
• Avoid snacking all day, especially on sugary foods.

Source: HealthDay