What are canker sores?
Canker sore also known scientifically as aphthous ulcer, is a common type of ulcer found in the mouth, gums, sometimes the upper throat region. It usually involves the breaking down of mucosal surface, which is the inner lining of the mouth, and this exposes the underlying tissue, leading to immense pain especially with contact or movement.
What are the oral signs and symptoms of canker sores
Depending on the size of the ulcers, they can be categorized under minor or major aphthous ulcers. Minor ulcers are anything less than 1cm in diameter while major ulcers extend beyond 1cm in diameter and can be extremely painful. They both usually have a yellow or whitish base where the tissue is exposed and a fiery red border is found around the ulcer. Minor ulcers usually only takes a few days up to a week to heal and major ulcers take much longer, sometimes up to two weeks. Minor ulcers can coalesce to form one big ulcer in which healing will again be delayed. Multiple small ulcers found in a cluster are usually herpetic form of ulcerations with a viral origin. Continue reading