The most common kind of home teeth whitening is using whitening strips. The main lure of this home teeth whitening option is the strips' effortlessness of use, they're easy to apply and no preparation is essential. Again, everybody loves shortcuts, right? Unfortunately, once again that's exactly the type of teeth whitening you end up receiving! Let me explain...

Strips that stick on your teeth usually consist of an upper strip and a lower strip each hard-pressed against the outer outside of your teeth. Now think about this for a second...Are your teeth completely flat? Of course not - they have recesses and grooves, mainly between each tooth. Well imagine you're painting a fence, and you just slap paint on the outside, without taking the time to paint in the grooves between each wooden board. That fence would look attractive funny, wouldn't it? Nicely painted on the outside, but in the groove between each wooden board, still dark and dirty, with the entire old paint showing.

When you use strips, the same thing can easily happen to your teeth if you're not careful. The whiter your teeth become, the more marked those dingy cracks seem! Eventually, it can end up looking like you have small gaps between your teeth. Definitely not the desired result!