Canker sore

MONDO:0005318

A type of stomatitis that is characterized by small white ulcerative lesions, single or multiple, round or oval, lasting for 7-14 days and healing without scarring. It is a recurrent disease of the oral mucosa of unknown etiology.

Also known as: aphthous ulcer, canker sore, aphthous stomatitis

16 clinical trials for this condition and its sub-types, 16 tagged with Canker sore itself.

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Where it sits in the disease tree

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↑ Stomatitis (312)

Including sub-types (16) Tagged with Canker sore (16)

Trials to join now! 5 Not yet recruiting 2 Not yet finished but already full! 1 Completed 8

Can a light device soothe canker sores?

Symptom relief Cancelled

Researchers are testing whether a low-level laser therapy device called Luminance RED can reduce pain and discomfort from recurrent canker sores. Adults who get canker sores at least once a month use the device at home and report daily pain and how hard it is to eat, drink, and b…

Sponsor: ProofPilot • Aim: Symptom relief

Last updated Sep 19, 2026 00:00 UTC

Canker sore

Where it sits in the disease tree

Can a light device soothe canker sores?