Receding gums occur when there is loss of gum tissue which exposes more of the tooth. Receding gums will expose tooth roots and can lead to tooth loss.
The main reasons for receding gums are:
- Aggressive oral health routine – you brush too hard or floss too much
- Gum disease
- Bruxism – aka teeth grinding
"Regardless of what's causing your receding gums, your dentist can help. Dentists are trained to determine the issue and work with you to create a treatment plan to resolve the problem"
This article contains more information about causes and treatments for receding gums: https://yourdentalhealthresource.com/what-are-receding-gumlines-and-how-are-they-treated/