Gum recession is the process in which the gums that surround the teeth wear down or pull back and expose more of the teeth and the roots. When the gums recede, gaps or pockets form between the teeth and gum line, allowing pathogenic bacteria to accumulate there.
Gum disease is the most common cause for gum recession. Many other factors may contribute to gum recession, including:
- Age
- Improper tooth brushing
- Grinding or clenching the teeth
- Crooked teeth
- Hormonal changes during puberty, menstruation, pregnancy, and menopause
- Smoking or chewing tobacco
- Genetics
- Gum trauma or injury

