Cancel | Bow Lane Dental in London

Our dental clinic is open and you can read our COVID-safe procedures here.

We have unfortunately had to temporarily stop our beauty treatments in line with Government regulations. All existing appointments will be rescheduled.

Mouth Ulcers

Mouth Ulcers
Mouth Ulcers

Mouth ulcers are very common and can be triggered by stress. The most important thing is to keep your mouth very clean and not to touch them with your fingers. Maintaining good oral hygiene and use of an antiseptic mouthwash or spray (e.g. chlorhexidine) can prevent secondary infection and, therefore, slow healing. They can be caused by braces, rough teeth or fillings or ill fitting dentures. Also cuts or burns while eating or drinking e.g. hard food or hot drinks.Certain components of ordinary toothpastes can trigger mouth ulcers. SLS, short for Sodium Lauryl Sulfate. This detergent does not actually clean teeth- its sole purpose is to produce foam and thicken the toothpaste. It gives the impression of cleaning you teeth but actually doesn't. SLS has been shown to increase your risk of developing mouth ulcers and that is why we advise to find a toothpaste that is SLS free especially if you are prone to mouth ulcers.It is all too easy to neglect your dental appointments. Is it really that long since I last saw my dentist? Unfortunately there is no quick fix for mouth ulcers, and they will need time to heal.


  • Choose to use a soft-bristled toothbrush.
  • Drink cold drinks through a straw.
  • Eat softer foods to prevent catching your ulcer.
  • Make sure you attend regular dental check-ups.
  • Eat a healthy and balanced diet.


  • Try not to eat very spicy, salty or acidic food.
  • Don't eat rough, crunchy food, such as toast or crisps.
  • Do not drink very hot or acidic drinks, such as fruit juice.
  • Avoid chewing gum.
  • Do not use toothpaste containing SLS (sodium lauryl sulphate) - a popular foaming agent found in toothpaste.

We also recommend trying a medicated oral gel to treat your mouth ulcer. You can find a list of recommended gels below:

Best to apply if with a clean finger just before bed, every day for a week. If you have an ulcer that has not healed in three weeks you must see your dentist or doctor. Bow Lane has flexible appointment times and online booking, making it easier to schedule a time which is suitable for you.

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Bow Lane Dental Group, 2a Bow Lane, London, EC4M 9EE

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Phone Us  (purple) | Bow Lane Dental in London
020 7236 3600

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