Gum recession

[Tina]

Gum recession is the loss of tissue at the gumline with exposure of the root of the tooth.
(See also Introduction to Periodontal Diseases.)
Recession usually occurs in thin, delicate gum tissue or in response to overaggressive toothbrushing or harsh toothpastes, such as those for whitening and tartar control. It can also result from injury or, often, the natural aging process. Most people have some slight recession.
Recession may also result in teeth very sensitive to cold, to sweet foods, or to touch. It may be accompanied by bone loss and may make the teeth more vulnerable to root cavities.