What about whitening strips...do they do a good job?
The short answer is that whitening strips are cheap, but they will only slightly whiten teeth that are already fairly light in color. Whitening strips are not effective on badly stained teeth, and they can take one to two months before results are seen.
A better alternative are custom made whitening trays made by your dentist. These trays will hold the whitening agent in place while protecting your gums from exposure to the agent. The whitening agent is also a stronger concentration and will produce results in a week. Some people see a difference in a couple of days. Trays have the added advantage of reusability. The patient takes them home and can reuse them for touch-ups.
It is important to remember that no whitening agents should be used when undergoing a bonding process as it can adversely affect the efficacy of the adhesive.