Mouth sores

The mouth can develop many different types of mouth sores. These maybe painful, perhaps unsightly and may just be due to the fact that you are run down and tired. Some might be the sign of something more serious. If your mouth sore does not disappear within 10 days, you should visit the Surbiton Smile Centre so that we can advise you. If you are aware that you have an infection, then again consult us as soon as possible so that we can avoid complications.

Signs and Symptoms

Burning Mouth: The Burning mouth syndrome is a painful burning sensation that occurs in the mouth, tongue, palate, gums, inside of cheeks and throat areas. It can persist for months or years.

Candidiasis (Thrush): Thisis a fungal infection that occurs in the mouth or throat due to an overgrowth of yeast. Symptoms include: white spots inside the mouth or on the tongue, sore throat, difficulty swallowing, and cracking at the corners of the mouth (cheilosis).

Canker Sores: These sores often develop as small white or yellow centre lesions with a red border. They develop in the mouth on the tongue, inside cheek areas, lips, gum line and throat area. They are not contagious. Canker sores may occur as one sore or several.

Cold Sores (Fever Blisters): These appear as clusters of red, raised blisters outside the mouth—typically around the lips — although they can develop under the nose or under the chin. They are highly contagious and can break open, which allows the fluid in the blisters to leak out and spread the infection. They typically scab over until they heal.

Leukoplakia: This is a white or grey area that develops on the tongue, inside of the cheek or on the floor of the mouth. Leukoplakia is not painful or contagious.

Sialadenitis: This is a bacterial infection that occurs when there is an interruption of salvia flow from the salivary gland to the mouth. The gland is firm and can be painful with swelling of the area. If the infection spreads, you may experience fever, chills and malaise.

Tooth Abscess: This occurs when there is a bacterial infection in the nerve of the tooth. Symptoms of a tooth abscess include severe toothache with pain, sensitivity to hot and cold beverages or food, fever, and swollen lymph nodes.


Causes for Mouth Sores

Mouth sores can be caused by bacterial, viral or fungal infections, a loose orthodontic wire, a denture that does not fit, or a sharp edge from a broken tooth or filling.

Burning Mouth: The cause for this is not clearly understood. Some common causes may be: nutritional deficiencies, dry mouth, oral thrush, diabetes, hormonal changes, certain medications, and anxiety or depression.

Candidiasis (Thrush): This is caused by a fungus and typically develops when the immune system is weakened. Some medications, such as steroid or cancer therapies, may increase the risk of developing this infection. Antibiotics also increase the risk of developing infection because they can alter the normal balance of bacteria in the mouth.

Canker Sores: In some cases, the exact cause of a canker sore is unknown, but trauma or injury to the mouth or oral soft tissues may be the culprit. Other possible causes are food sensitivities, spicy, salty or acidic foods, vitamin B deficiency, hormonal shifts and stress.

Cold Sores: These are caused by the herpes simplex virus (HSV)-1 and are highly contagious. The initial infection with the virus can be accompanied by cold or flu-like symptoms and can cause painful oral lesions. There is no cure for the herpes virus. Reoccurrence can occur when an individual has a fever, menstruation, fatigue, stress or exposure to the sun.

Leukoplakia: These can result from irritations that occur from fillings, crowns or ill-fitting dentures. Other causes include tobacco use, HIV/AIDS and the Epstein-Barr virus. Sometimes, leukoplakia is associated with oral cancer, so it’s important to see your dentist, if you notice any of these patches developing. Our dentist may recommend a biopsy if the patch appears suspicious.

Sialadenitis: This is a bacterial infection of a salivary gland and can be acute, chronic or recurrent. Pus may drain through the salivary gland into the mouth. These infections occur most often in the parotid gland.

Tooth Abscess: This occurs when bacteria invade the dental pulp, the nerve and blood vessels of the tooth. Bacteria enters the pulp and spreads to the root. The bacterial infection causes pain, bad breath and inflammation. The tight space, within which the inflammation occurs, forces pus into a pocket (abscess) at the tip of the root.


Diagnosis of Mouth Sores

At the Surbiton Smile Centre, we will carefully examine the inside of your mouth, tongue and glands. Although many of these sores and infections may be harmless, some are not, so it is important to talk to us about the problems you are experiencing and feeling in your mouth.

Mouth Sores Prevention: Regular check-ups will increase the likelihood that suspicious sores and infections in your mouth are found early. In between visits, get to know the signs, and what to do, if you find anything suspicious.

Treatment of Mouth Sores: Burning Mouth: Medications can be prescribed to alleviate underlying causes of burning mouth syndrome. You can take certain actions to reduce your symptoms by avoiding alcoholic beverages, tobacco use, acidic and spicy foods and beverages, and stress.

Candidiasis (Thrush): This is treated with a prescription antifungal medication. It is most commonly seen in HIV/AIDS patients, after cancer therapy, organ transplant, diabetes and in denture-wearers.

Canker Sores: These usually heal without treatment one or two weeks after they break out. However, if they are painful; so over-the-counter topical anaesthetics and antimicrobial mouth rinses may provide temporary relief.

Cold Sores: Cold sore blisters usually heal by themselves in about one week. Over-the-counter topical anaesthetics can provide some pain relief. We may prescribe antiviral drugs to reduce the healing time for these sores.

Leukoplakia: Treatment begins with identifying the source of the irritation. Once the irritant is removed, which may mean smoothing a rough tooth surface, repairing a dental appliance or quitting tobacco use, the patches should disappear.

Sialadenitis: Hydration is the first step in this treatment. Then a course of antibiotics is given to destroy the bacteria. If the infection does not improve, surgery may be needed to open and drain the salivary gland.

Tooth Abscess: Root Canal Treatment can eliminate the infection and save the tooth. If the tooth cannot be saved, we will extract the tooth and drain the abscess to eliminate the infection. An antibiotic will be prescribed to stop the bacterial infection.


Related Conditions

While most mouth sores and infections can be treated and/or managed effectively, some are more serious and in rare instances could be a sign of oral cancer. Be on the lookout for a white or reddish patch inside the mouth, as well as a lump or thickening of the skin or mouth lining. Other symptoms include tongue pain, loose teeth, jaw pain, difficulty in chewing or swallowing, or even just a sore throat. Oral cancer can occur anywhere in the mouth, including the gums, lips, tongue, roof of the mouth, floor of the mouth and inside lining of the cheeks and the throat.

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