Over time, exposure to foods, drinks (especially coffee, tea, colas and red wine) and tobacco will gradually darken your newly whitened teeth. But there are steps you can take to maintain your pearly white smile.

It takes only a small effort to keep them looking their brightest. Here are some tips for maintaining your newly whitened teeth:

- Use a whitening toothpaste to remove surface stains and prevent yellowing.
- Brush or rinse immediately after consuming stain-causing beverages.
- Use a straw to drink beverages that stain, such as coffee, tea, colas and red wine.
- Wear a bright shade of lipstick-blue or pink based. It will make your teeth appear whiter. Avoid orange or brown shades.

Depending upon the whitening method you used, you may need a touch up in six months or after a year or two. If you smoke or drink a lot of coffee, you may need a touch up more often. Avoid foods with heavy staining properties such as cherries, berries, curries and sauces like soy and balsamic vinegar. It is recommended that teeth should be cleaned as soon as possible after ingesting such foods.

Last but not least: Drink water after each meal. This helps to prevent teeth staining and is also good for your health.