Photo by @ejaybg via Twenty20 Whitening Toothpastes. There are many ways to achieve the white teeth of your dreams, and hundreds of products to choose from. As with most things in life, you get what you pay for. The top of the line tooth whitening treatment is an in-office laser whitening which will run you about $600.00 Expensive for some, but it gives guaranteed and immediate results. The cheapest method of tooth whitening is the use of whitening toothpaste. This…