What is Leukoplakia and How Can I Prevent It? Exploring the Link Between Smoking and Risk

25 September 2024

What is Leukoplakia and How Can I Prevent It? Exploring the Link Between Smoking and Risk

You may not have heard of leukoplakia but it’s a condition worth knowing about, particularly for those concerned with oral health. Leukoplakia refers to a white patch or patches that form on the inside of the mouth, typically on the gums, tongue or cheeks. While in its mild form, there’s no immediate cause for concern, it’s important to keep an eye out, as sometimes it can be a precursor to more serious health issues, including oral cancer.

This article explains leukoplakia in more detail and explores why it happens, its relationship to smoking, and most importantly, how you can lower your risk of developing it. So, let’s get started.

What exactly is leukoplakia?

Leukoplakia is a condition that causes thickened white or grey patches to develop in the mouth. The patches can be

• Flat or slightly raised
• Appear on or under the tongue, gums, the insides of the cheeks, and even the roof of your mouth.
• Be grey, white, or white with tiny red dots.

While they don’t typically cause discomfort they can’t be removed by scrubbing with your toothbrush either.

Oral leukoplakia is essentially a pre-malignant lesion which has a transformation rate to cancer of approximately 0.1% to 17.5%. A 2020 population-based cohort study found the overall 5-year risk of transformation to malignancy was 3.3%.

What causes leukoplakia?

Leukoplakia develops as a reaction to ongoing irritation of the mucous membranes in the mouth. Smoking, chewing tobacco, and heavy alcohol consumption are the most common factors linked to its development. However, it can also be associated with other conditions, such as:

• Poorly fitting dentures
• Periodontitis

While some cases may have no obvious cause, a significant number are linked to smoking, particularly cigarette smoking. This leads us to the crux of this blog:

The link between smoking and leukoplakia

Smoking is a major cause of serious health issues, including a significantly higher risk of developing leukoplakia. Smokers are six times more likely to develop this condition compared to non-smokers. Leukoplakia is more common in men and tends to increase with age, although in women, it’s more likely to become cancerous.

Cigarettes release over 5,000 chemicals, at least 70 of which are known to cause cancer, according to Cancer Research UK. Smoking irritates the mouth lining, leading to white patches, and smokers are also more prone to oral infections and dry mouth, increasing the risk of leukoplakia.

Why is smoking so dangerous?

Smoking introduces heat, chemicals, and toxins into the mouth, causing chronic inflammation and cell changes that can lead to leukoplakia. It also weakens the immune system, making it harder to heal from damage. Smokers not only face a higher risk of developing leukoplakia but are also up to 10 times more likely to develop mouth cancer, with about 60% of cases linked to smoking. This highlights the serious impact smoking has on oral health. That’s the bad news, now let’s look at ways of preventing leukoplakia.

How to prevent leukoplakia

The good news is that leukoplakia is often preventable, and there are several steps you can take to reduce your risk. Here’s what you need to know:

Stop smoking or using tobacco products

The most effective way to prevent leukoplakia is to quit smoking or using tobacco products. The sooner you quit, the better your chances of preventing the development of leukoplakia and other oral health problems. The benefits of quitting start within days, and your oral health will improve significantly over time. The NHS Smokefree service offers free support, including quit plans, local stop-smoking services, and nicotine replacement therapies.

Drink less alcohol

Heavy alcohol use can also irritate the lining of the mouth, increasing the risk of leukoplakia. If you drink alcohol, try to stick within the UK’s recommended limits of 14 units per week, spread over several days. Drinking more than this can harm your oral health and increase your risk of leukoplakia, especially when combined with smoking.

Maintain good oral hygiene

Keeping your mouth clean and healthy is a key part of preventing leukoplakia. Brush your teeth twice a day, floss daily, and visit your dentist regularly. It’s also important to address any dental issues that could irritate, such as poorly fitting dentures or sharp jagged teeth.

Your dentist can spot early signs of leukoplakia during routine check-ups. If any patches are identified, they can monitor or take a biopsy to ensure it is not cancerous.

Eat a balanced diet

Approximately one-third of mouth cancers are believed to be associated with poor diet and deficiencies in essential vitamins and minerals.

To reduce your risk, it’s advised to maintain a healthy, balanced diet rich in fruits and vegetables.

Growing evidence also indicates that Omega-3, commonly found in eggs and fish, may help lower cancer risk. Likewise, fibre-rich foods such as nuts, seeds, whole-wheat pasta, and brown rice are thought to provide similar benefits. Staying well-hydrated also keeps your mouth healthy by promoting saliva production, which is essential for washing away harmful bacteria and irritants.

Avoid Irritants

If you frequently consume very hot drinks or spicy foods, be mindful of how they may affect the lining of your mouth. Chronic irritation can increase your risk of leukoplakia, so try to let your food and drinks cool down a bit before consuming them.

When to see a doctor

If you notice any white patches or unusual changes inside your mouth, especially if you’re a smoker, it’s important to get them checked out by a dentist or doctor. Leukoplakia is usually harmless, but in some cases, it can be a sign of something more serious. Early detection is key to preventing complications.

For more information on maintaining your oral health or addressing concerns like leukoplakia, visit Cheadle Hulme Dental. Our expert team is here to help you with personalised care and advice for a healthier, brighter smile. Book your consultation today!