Teeth Whitening Techniques vary according to the teeth whitening procedure that a customer uses. There are teeth whitening techniques that require the customer to place strips on the teeth at bedtime, cumbersome teeth whitening trays, whitening gel that is pasted on the teeth and teeth whitening techniques done in the dentist’s office. The teeth whitening techniques range in price from less than fifty dollars to over one thousand dollars. And don’t forget the teeth whitening toothpaste that can take up to a year to see results.