Can having a toothache be a symptom of mouth ulcers?

Yes: It is best to see your dentist so that they can take xray radiographs of the suspected tooth, and then determine if there are any issues with the tooth, as well as to check the sores. Getting proper diagnosis is the key to approriate treatment.

Unclear: True ulcers, such as aphthous ulcers, or traumatic ulcers, do not typically cause toothaches. See a dentist to diagnose and treat as necessary the ulcers and the toothache.

Possibly: Chronic tooth infection can result in a draining fistula from an infected nerve. Usually they look like a pimple on the gum area until they break and drain into the mouth. Recommend a dental evaluation asap.