We recommend a take-home tray whitening system for our patients who want to whiten their teeth. Impressions are taken so we can duplicate the patient’s teeth, and then custom, comfortable, clear trays are made. Whitening gel is then placed in the trays and they are worn overnight or for several hours to start the whitening process. Usually, after a week, most teeth are at the best shade, but for darker teeth, more days of whitening may be needed.