Causes: The most common cause of mouth ulcers is trauma from inadvertent bites, burns or tooth brushing. Dentures and orthodontic appliances may also cause ulceration, particularly when first fitted.

Some individuals suffer from recurrent oral ulceration (aphthous ulcers) and occasionally multiple ulcers may also be caused by the Herpes virus.

Symptoms: in all instances, the ulcers are painful when eating and spicy and acidic foods are best avoided.

Treatments/Advice: Dentures or orthodontic appliances should be adjusted by the dentist who fitted them
Healing will be helped by using an antibacterial mouth rinse or rinsing with saltwater. Ulcers normal heal within a week or so, but if they persist for more than 4 weeks you should consult a dentist.