Teeth naturally darken with age; however staining may be caused by various foods and beverages such as coffee, tea and berries, some drugs such as tetracycline, smoking, or a trauma to a tooth. There are various teeth whitening options available.
At Home Whitening
This is usually done by applying a bleaching solution to a custom-formed mouth guard that is left in the mouth for a specified time. Some products are intended for twice-daily use for up to two weeks. Others are intended for overnight use for one to two weeks.
All toothpastes remove surface stains through the action of mild abrasives. Whitening toothpastes contain special chemicals or polishing agents that have additional surface-stain removing properties, but don’t alter the intrinsic colour of the teeth.*