DENTAL SYMPTOMS AND GETTING HELP

When should a persistent mouth ulcer be checked?

Seek urgent dental advice for an ulcer present for two weeks or more that has not healed or has worsened. Any ulcer lasting over three weeks must be checked by a dentist or GP.

Do not leave a non-healing ulcer unchecked Seek urgent dental advice for an ulcer present two weeks or more that is not healing or has worsened. A sore lasting over three weeks must be checked. The coordination team’s WhatsApp is not an emergency service.
Find the right local help
WHAT THIS GUIDE EMPHASISES

Persistent mouth ulcers

  1. Note the date

    Record when the same ulcer first appeared.

  2. Report changes

    Get advice for an unusual, bleeding or increasingly painful ulcer.

  3. Check rubbing

    A sharp tooth or denture may contribute, but do not assume that is the cause.

A visual summary of this guide’s key points. General information for a clinical conversation, not an assessment or treatment plan.
On this page

A KEY QUESTION

Most mouth ulcers settle within a week or two. A persistent or unusual sore needs examination, even if you suspect rubbing caused it.

01

When to get help

NHS urgent-dental guidance uses the two-week threshold for a non-healing or worsening ulcer. Contact a dentist or NHS 111 in England. Do not wait for the separate three-week threshold in the general ulcer guidance.

Seek advice sooner for an unusual ulcer, bleeding, increasing pain or redness. Breathing difficulty or inability to swallow needs immediate local emergency help. WhatsApp is not an emergency service.

02

One lasting sore or repeated ulcers?

THE DETAILS TO UNDERSTAND

Tell the clinician whether the same sore has stayed in one place or separate ulcers appear and heal. Note when it first appeared, not just when it became painful. If you are unsure, say so.

A reading map for this section. General information; discuss your individual circumstances with the appropriate clinician.
03

Rubbing from teeth or dentures

A sharp tooth, rough filling or poorly fitting denture may irritate the mouth. Mention any contact with the sore, but do not file teeth or alter a denture yourself. After an adjustment, agree when to return if the ulcer remains.

A denture teaching segment touches a pink cheek panel that is held upright in a visible support on a shared blue base.
Illustrated explanation: When should a persistent mouth ulcer be checked? A supported teaching model shows where a denture edge can contact the cheek; mention rubbing to the dentist rather than altering the denture yourself. Illustration for general information; not a patient result.
04

Other symptoms and medicines

Tell a GP about ulcers elsewhere on your body or painful, swollen joints. Mention new medicines without stopping them yourself. During cancer treatment, follow your care team’s reporting instructions; general persistence thresholds must not override that plan.

05

Keeping comfortable

Use a soft toothbrush and avoid foods that irritate the sore. A pharmacist can advise on comfort products for a recent uncomplicated ulcer. Explain medicines and allergies first. Relief does not replace a check when warning signs apply.

06

After the examination

Check when to return if the sore remains and who will contact you about any tests or referral. A referral does not itself mean cancer. Report worsening symptoms while waiting rather than assuming the original appointment date is still appropriate.

Read the related guidance

Keep the wider treatment plan in view while comparing these options.

Questions for a clinical assessment

Seek the local care described above first. When you speak with the clinician, these questions may help you understand the plan.

  • Will I receive my treatment records and written care instructions?
  • Who should I contact after returning home, and how will reviews be arranged?

Common questions

No. Seek urgent advice at two weeks if the ulcer is not healing or has worsened, and sooner for unusual changes.

No. There are several possible causes, but a picture cannot diagnose or dismiss it.

Tell your dentist or GP how often they occur, whether each heals fully and about symptoms elsewhere.

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About this information

Published by Best Smile Turkey, a health-tourism intermediary. Your treating dentist is responsible for assessment, treatment and care.

Use this information to prepare questions for your dentist. An examination is needed to advise on treatment. Photographs, models and previews cannot establish suitability or predict results.

Source checking is not a clinical review. How we use sources and images, or how to report a correction.

Sources and further reading

These resources offer general guidance; their publishers do not endorse Best Smile Turkey or the treating provider. Manufacturer links identify products or records, not independently compared outcomes. NHS funding information concerns UK care, not treatment costs in Turkey.

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