9 Inexpensive Ways to Whiten Teeth Fast
Baking Soda

Adding baking soda to toothpaste can have amazing results for teeth and is one of the most well-known teeth whitening practices. Baking soda is, however, quite abrasive and can cause damage to enamel with prolonged or frequent regular use, so it is recommended as a once a week treatment. Whitening toothpaste often contains small amounts of baking soda to help moderate baking soda usage.
Don't Brush Teeth Too Much

Brushing teeth too much, and too hard, will eventually erode the enamel on the teeth which leaves the teeth vulnerable to staining. Although stains tempt individuals to brush them harder, this can, in fact, be a damaging practice. Consider using Oral-B Pro 1000 Electric Toothbrush as the pressure sensor stops the pulsation movement if you brush to hard. There are a few kinds of toothpaste that change colour when in contact with the plaque in the mouth and this type of product can help to identify where to brush.