The gum canker sore is among the most frequent of the mouth canker sores.
A gum canker sore can be located anywhere on the gums.
Canker sores on gums are painful because gums are very sensitive but fortunately you can't bit them. They are easily caused by braces, dental bridges and mini-traumas made by toothbrushes.
If you often have mouth sores on gums, AftaZen is a preventive treatment that can keep mouth sores away from your gums. Learn how: