Instant Teeth Whitening:

Whitening tooth pastes help remove surface stains only, whereas whitening at the dentist's office removes stains on the tooth surface as well as stains deep in the tooth.  Light - activated whitening conducted at Smile Works makes your teeth 3 to 8 shades lighter.

It's absolutely safe and results last for 2 years or more. The whitening procedure at Smile Works is highly competitively priced.