- Crispian Scully,
- Rosemary Shotts
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.
Main systemic and iatrogenic causes of oral ulcers
Hand, foot, and mouth disease
Acute necrotising gingivitis
Linear IgA disease
Chronic ulcerative stomatitis
Other white cell dyscrasias
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
Recurrent aphthous stomatitis (aphthae, canker sores)
Recurrent aphthous stomatitis typically starts in childhood or adolescence with recurrent small, round, or ovoid ulcers with circumscribed margins, erythematous haloes, and yellow or grey floors. It affects at least 20% of the population, and its natural course is one of eventual remission. There are three main clinical types:
Minor aphthous ulcers (80% of all aphthae) are less than 5 mm in diameter and heal in 7–14 days
Major aphthous ulcers are large ulcers that heal slowly over weeks or months with scarring
Herpetiform ulcers are multiple pinpoint ulcers that heal within about a month.
Some cases …