Mouth ulcers concerns

Mouth ulcers are painful sores that appear in the mouth, usually on the soft tissue - cheeks, lips or tongue. They can be white, red, yellow or grey in colour and swollen.

Although they're uncomfortable, mouth ulcers are usually harmless and clear up by themselves within a week or two.

In many cases, the reason for mouth ulcers is unclear, but triggers are thought to include:

  • Accidentally biting the inside of your cheek or a sharp tooth
  • Poorly fitting dentures
  • Hard food
  • A defective filling
  • Stress and anxiety
  • Hormonal changes – some women develop mouth ulcers during their monthly period
  • Eating certain foods – such as chocolate, spicy foods, coffee, peanuts, almonds, strawberries, cheese, tomatoes and wheat flour
  • Toothpaste containing sodium lauryl sulphate
  • Stopping smoking – when you first stop smoking, you may develop mouth ulcers
  • Viral infections – including the cold sore virus, chickenpox, and hand, foot and mouth disease
  • Medical conditions - including vitamin B12 or iron deficiency, Crohn's disease, coeliac disease, reactive arthritis, HIV, lupus, Behçet’s disease
  • Certain medications or medical treatments may also cause mouth ulcers

It's usually safe to treat mouth ulcers at home to help reduce swelling and ease any discomfort.

Self care

Tips for easing discomfort and aid healin…

  • Antimicrobial mouthwash or protective paste, available from your pharmacist
  • Use a soft toothbrush to brush your teeth
  • Use a toothpaste that doesn’t contain sodium lauryl sulphate, as this may be irritating
  • Avoid hard, spicy, salty, acidic or hot food and drink until the ulcer heals
  • Use a straw to drink cool drinks
  • Avoid things that may be triggering your mouth ulcers

Mouth ulcers can sometimes be a possible symptom of a more serious problem such as infection or mouth cancer. It's therefore essential that you contact [practice name] as soon as possible if you notice:

  • your mouth ulcer has lasted three or more weeks
  • you keep getting mouth ulcers
  • your mouth ulcer becomes more painful or red
Patient Reviews

People are talking about us

The biggest complement we receive is when our patients refer their friends and family to Temple Square Dental. In fact, we have built much of our practice on these valued, trusted recommendations over the years. Read our reviews to hear why our patients are recommending us…

Patient reviews

1422 Reviews

5.0

10th June 2026

Staff are so friendly and helpful. You just feel very cared for and safe. I know I am good hands during appointments.

10th June 2026

All very professional and friendly Very clean surgery

AM

Andrew Murphy

Very good

6th June 2026

I have been a patient at Temple Square for many years.All the staff have always been fantastic, efficient, professional & very kind.

6th June 2026

Everyone friendly and puts you at ease. Appointment was on time. All ran smoothly

4th June 2026

Very friendly,professional caring service

3rd June 2026

Professional conduct of all staff as well as being human and compassionate and personable.

IJ

Ivor Jones

Excellent- first rate as always

29th May 2026

Everyone is very helpful and knowledgeable. This makes the world of difference and I feel confident in what needs to be accomplished with my dental work.

28th May 2026

Very calm, gentle attitude stops me being nervous.Never feel rushed.Properly listened to.Disability catered for.Whole atmosphere relaxed

KS

Kyran Spurrier

I mainly started going here because I wanted to try and get an anti-snoring mouth device fitted. I was impressed by the modern technology and how they used it to make it a fast and painless process, and the device itself works very well. They went over the care and maintenance parts thoroughly with me and you can tell they care. Speaking of, all the staff are extremely friendly and have given me a superb experience. I would highly recommend this dentist.

23rd May 2026

Lovely welcome on arrival. Seen on time. Lucy is a great listener and always makes you feel relaxed. She explains treatments well and you know your in good hands.

20th May 2026

Very efficient service by everyone I encountered. Still friendly and personable though!!

20th May 2026

I was treated with respect and all the staff were friendly and welcoming.

DH

Donna Hughes

Dr Jacqui Kemp is an excellent dentist; gentle, thorough and very reassuring. I’ve been attending Temple Square for over 30 years and I have always been very satisfied with my dental treatments. My previous dentist there has retired but I feel in equally safe hands with Dr Kemp.

17th May 2026

I have always found Prab Morgan and her team most efficient, caring and professional. I have already recommended her to my friends.

14th May 2026

Good all round practice

13th May 2026

Had check up. No treatment needed.

13th May 2026

Cheerfulness of staff

13th May 2026

Always accommodating and friendly staff

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