What is the direct answer?
Mouth sores are breaks or inflamed areas in the lining of the mouth; many heal on their own, but a persistent or unusual lesion needs examination.
What does this question mean?
A mouth sore may be an aphthous ulcer, trauma from biting or a sharp tooth, a burn, appliance irritation, or infection. Location, number, appearance, pain, recurrence, and healing time guide assessment.
What can you do next?
Avoid picking it, use a soft brush, choose cool foods, and avoid tobacco and aggravating foods. A dentist can smooth a sharp edge, adjust an appliance, inspect the lesion, and prescribe treatment when indicated.
When should you seek dental care?
Arrange an examination for a persistent, recurrent, unusually large, or painless sore, especially with a neck lump, fever, weight loss, or swallowing difficulty.
What should you ask the dentist?
Ask what lesion it resembles, what may traumatise it, and whether medicine, a swab, blood test, or biopsy is indicated.
Frequently asked questions
Could this have more than one cause?
Yes. Examination separates local irritation, tooth disease, gum disease, and oral-lining conditions that can feel similar.
What will the dentist check first?
The dentist will take a focused history, inspect the area, and use probing, tests, or imaging when the findings call for them.

