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mouth hygiene & mouth ulcers
Health & Wellbeing

Mouth Hygiene & Mouth Ulcers

Mouth ulcers can be painful and embarrassing but are not always due to poor mouth hygiene.

What are mouth ulcers?

Mouth ulcers are oval or round inflamed sores that form in the mouth. They are usually found on the inside of the cheeks, lips or on the edge of the tongue. They can be red, white, grey or yellow in colour, usually with a red outer edge. Some ulcers are only mildly painful where they are almost unnoticeable and easily ignored. Others are extremely painful, causing constant throbbing and difficulties with speaking, eating and processing the saliva in the mouth.

What causes mouth ulcers?

Many factors have been linked to the development of mouth ulcers, and different people report different triggers. Some of the most common triggers are:

mouth ulcers
  • Damage to the tissues in the mouth lining caused by:
    • Dentures rubbing
    • Abrasion with a toothbrush or a sharp/misaligned tooth
    • Accidental biting of the cheek
    • Burns from hot food
    • Irritation from a strong mouthwash
  • A vitamin deficiency such as a lack of iron, vitamin C, B12 or folic acid
  • Dry mouth caused by:
    • Dry Mouth Syndrome
    • Autoimmune diseases such as Sjogren’ syndrome/aphthous stomatitis
    • Dehydration
    • Medication such as antidepressants, antihistamines and diuretics
    • Fungal infection of the mouth such as candidiasis (oral thrush)
    • Radiation Treatment/Chemotherapy
    • Diabetes
  • Anti-inflammatory painkillers and beta-blockers
  • Gastrointestinal tract conditions such as ulcerative colitis, Crohn’s, coeliac disease
  • Infections such as streptococcus, herpes simplex, lichen planus, shingles, syphilis or tuberculosis
  • Smoking
  • Toothpaste containing Sodium Lauryl Sulphate (SLS)

Mouth Ulcer Prevention

  • Swap your toothpaste for one that does not contain the ingredient sodium lauryl sulphate.
  • Make sure you are eating well 80% of the time.
  • If you feel your diet is lacking in folic acid, vitamin B12, iron or vitamin C, you might consider taking supplements, but it is always better to try and achieve this first through changes in diet. Vitamin C and B12 are necessary to the absorption of iron if you are lack in this, for example, if you are suffering from anaemia.
  • Eliminate any foods that you feel may make you more prone to ulcers such as spicy foods, acidic foods or anything that is abrasive to the mouth tissues - e.g. crusty bread.
  • Maintain good oral hygiene and denture care - change your toothbrush monthly, choose a toothbrush that is not too abrasive to the gums, and brush your teeth twice a day. Brush dentures twice a day and soak in denture cleaning tablets (preferably tablets free of persulfates).
  • Seek medical attention if you are struggling to drink fluids, you have had an ulcer for more than three weeks, if an ulcer is large and extremely painful, or if you are suffering from a fever and have ulcers.
  • Stop smoking if you can (initially after quitting you may temporarily have a few more ulcers than usual)
  • Try to limit stressful situations and to sleep enough so that your body does not become run-down.

Using Xylotene for Mouth Ulcers

Xylotene is highly effective in treating mouth ulcers due to its ability to target many of their causes:

  • it addresses dry mouth by increasing saliva flow
  • it combats harmful bacteria in the mouth such as Streptococcus mutans (the bacteria most responsible for plaque/tooth decay and inflammatory gum disease)
  • it reduces the acidity of saliva
  • it fights Candida Albicans (oral fungal/yeast infection) by reducing its ability to stick to the oral mucosa

Xylotene also gives rapid pain relief to mouth ulcers and prevents reoccurrence by treating the underlying causes. It can be used as a mouthwash (diluted in water, rinsed around the mouth for one minute and then gargled) or applied directly on a clean finger to affected areas in the mouth. It can be swallowed for added health benefits such as increasing calcium absorption in the gut where it also acts a prebiotic.


Beiswanger, B.B, Boneta A.E, Mau M.S, Katz B.P, Proskin H.M, Stookey G.K. (1998). The effect of chewing sugar-free gum after meals on clinical caries incidence. J. Am. Dent. Assoc. 129, 1623-6.
Hamada, S. (2002). Role of sweeteners in the etiology and prevention of dental caries. Pure and Applied Chemistry, 74(7).

Pizzo G, Giuliana G, Milici ME, Giangreco R. (2000). Effect of dietary carbohydrates on the in vitro epithelial adhesion of Candida albicans, Candida tropicalis, and Candida krusei. New Microbiol. 2 (23), 63 - 71.

Roberts, M., Riedy, C., Coldwell, S., Naganama, S., Judge, K., Lam, M., Kaakko, T., Castillo, J. and Milgrom, P. (2002). How xylitol-containing products affect cariogenic bacteria. The Journal of the American Dental Association, 133(4), 435-441.

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