Canker sores, or apthous ulcers, are common oral ulcers caused by a break in the mucous membrane. Learn more about canker sores, including symptoms and treatments, in this video.
Duration : 0:1:11
[youtube uRY2X9RonMU]
Canker sores, or apthous ulcers, are common oral ulcers caused by a break in the mucous membrane. Learn more about canker sores, including symptoms and treatments, in this video.
Duration : 0:1:11
[youtube uRY2X9RonMU]