If you have yellow teeth and want to get rid of those stains in order to have a brighter smile, then here are some things you can do. The first thing you can do is to get one of those whitening trays that come with whitening gel. These can cost around $30 or so and will help whiten your teeth in about 2 weeks. The results you get with these trays or any product will vary depending on how badly stained your teeth are. Another thing you can do if you don’t want to have to wait long is to get laser teeth whitening. This procedure can take about 1 hour. When choosing which method to go with, you will want to look at the teeth whitening price as well as the amount of time it takes.