1. Stop Stains With Baking Soda
If your love of coffee, red wine, or other tooth-staining food and drink is leaving your pearly whites dim, try brushing baking soda on your teeth twice a month, just like you would toothpaste, then rinse away to help brighten your smile. If plain baking soda irritates your teeth or gums, you may want to try a toothpaste that contains baking soda or avoid it completely.
2. Foods Can Stain or Brighten Teeth
There’s speculation that strawberries may have natural teeth-whitening properties. But it’s best to brush thoroughly after eating teeth-staining food like blueberries, coffee, and cigarettes. To help minimize discoloration, brush, then munch on apples, pears, carrots, or celery, all of which trigger tooth-bathing saliva, which helps keep your teeth bright.
3. Regulate Your Acid Reflux
If you have acid reflux, you’ll want to get it under control to help preserve tooth enamel and oral health. Common foods and drinks that trigger reflux include chocolate; alcohol; caffeinated drinks like soda, coffee, and tea; garlic and onions; dairy; tomatoes; citrus fruits; mint; and spicy, fatty, or fried foods.
4. Take Care of Your Tongue
Tackle bad breath every time you brush — take time to brush or scrape your tongue, too. Your tongue plays host to the bacteria that help cause bad breath, so giving it a scrub, or using a tongue scraper daily, can help reduce odor-causing compounds.
5. Medication Can Cause Dry Mouth
Your mouth needs saliva to stay healthy, but hundreds of medications, like antidepressants, high blood pressure drugs, and antihistamines, can dry up saliva. Medication is the most common cause of dry mouth. To help keep your mouth moist, increase your fluid intake, ask your dentist about an artificial saliva product, or chew sugarless gum after a meal.
Thanks to WebMD for this great article.