Gum disease is an infection of the gums and bone surrounding the teeth.
Gum disease can be painful due to inflammation but also may be present without any symptoms.
It is caused by plaque and lack of proper oral hygiene.
Gingivitis is the earliest stage of gum disease. Gum disease is still reversible at this stage. It characterized by red, bleeding, or swollen gums.
Periodontitis is advanced gum disease. It can lead to loss of surrounding bone and progression of tooth loss over a period of time.