PDF: Mouth ulcers and other causes of orofacial soreness and pain


Mouth ulcers are common and are usually due to trauma such as from ill fitting dentures, fractured teeth, or fillings. However, patients with an ulcer of over three weeks’ duration should be referred for biopsy or other investigations to exclude malignancy (see previous article) or other serious conditions such as chronic infections.



Ulcers related to trauma usually resolve in about a week after removal of the cause and use of benzydamine hydrochloride 0.15% mouthwash or spray (Difflam) to provide symptomatic relief and chlorhexidine 0.2% aqueous mouthwash to maintain good oral hygiene.


* Patients with a mouth ulcer lasting over three weeks should be referred for biopsy or other investigations to exclude malignancy or other serious conditions

Crispian Scully, Rosemary Shotts
ABC of oral health