Mouth cancer – also known as oral cancer – is a serious condition that affects thousands of people in the UK each year. It can appear in various parts of the mouth, including the lips, tongue, cheeks, gums, and the roof or floor of the mouth. Early detection significantly improves the chances of successful treatment, which is why understanding the causes and risk factors is crucial.
At The Priors Dental Practice, we believe in empowering our patients with knowledge. In this article, we’ll explore the main causes of mouth cancer, how you can reduce your risk, and why regular dental check-ups play a vital role in early detection.
What is mouth cancer?
Mouth cancer is a type of head and neck cancer. It develops when cells in the mouth begin to grow abnormally and uncontrollably, forming a tumour. These tumours can be benign (non-cancerous) or malignant (cancerous), with the latter having the potential to spread to other parts of the body if left untreated. Most oral cancers are squamous cell carcinomas, which arise in the thin, flat cells lining the inside of the mouth. They can often be detected early during routine dental examinations – highlighting the importance of seeing your dentist regularly.
The main causes and risk factors
Tobacco use
Tobacco is the single biggest risk factor for developing mouth cancer. This includes:
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- Smoking cigarettes, cigars, and pipes
- Smokeless tobacco, such as chewing tobacco, snuff, or betel quid
The chemicals in tobacco products are known carcinogens that can damage the DNA in your cells, leading to mutations and uncontrolled growth. Fact: Smokers are up to six times more likely to develop mouth cancer compared to non-smokers.
Alcohol consumption
Heavy and frequent alcohol consumption significantly increases the risk of mouth cancer. Alcohol can act as an irritant, especially when combined with smoking, multiplying the harmful effects. It also makes it easier for carcinogens (like those in tobacco) to enter the cells of the mouth. This combination is particularly dangerous: people who both smoke and drink heavily are up to 30 times more likely to develop oral cancer than those who do neither.
Human papillomavirus (HPV)
HPV, particularly the strain HPV-16, has been increasingly linked to mouth and throat cancers. It is a common sexually transmitted virus that often shows no symptoms and can be spread through oral sex. While most HPV infections clear up on their own, some can lead to cellular changes that may progress to cancer over time. HPV-related mouth cancers are on the rise, especially in younger adults who do not have the traditional risk factors like smoking or alcohol use.
Poor diet and nutrition
A diet low in fruits and vegetables can increase your risk of oral cancer. These foods contain antioxidants, vitamins, and minerals that help protect cells from damage. Deficiencies in key nutrients such as vitamin A, C, and E may compromise the body’s ability to repair damaged tissues and protect against abnormal cell growth. A healthy, balanced diet plays a crucial role in cancer prevention.
Excessive sun exposure
Cancers of the lips are often caused by prolonged exposure to ultraviolet (UV) radiation from the sun. This is particularly common among people who work outdoors or spend significant time in direct sunlight without protection. Tip: Use a lip balm with SPF and wear a wide-brimmed hat when outdoors to reduce UV exposure.
Age and gender
While mouth cancer can affect anyone, it is more commonly diagnosed in people over the age of 50. It is also more prevalent in men than in women, possibly due to higher rates of tobacco and alcohol use among males historically. However, the rise in HPV-related cases has led to an increase in diagnoses among younger individuals, including women.
Family history and genetics
A family history of cancer, particularly head and neck cancers, may increase your personal risk. Genetic factors can influence how your body responds to carcinogens and repairs damaged DNA. However, lifestyle factors generally play a larger role in oral cancer development.
Poor oral hygiene and gum disease
Chronic irritation caused by rough teeth, ill-fitting dentures, or long-term untreated gum disease may increase the risk of mouth cancer, although this link is less direct than with smoking or HPV. Maintaining good oral hygiene and addressing dental issues promptly can help minimise inflammation and irritation in the mouth.
How to reduce your risk
The good news is that many cases of mouth cancer are preventable. Here are some proactive steps you can take to lower your risk:
- Quit smoking and avoid all tobacco products
- Limit alcohol intake
- Practice safe sex, including the use of protection during oral sex to reduce HPV risk
- Eat a healthy diet rich in fruits and vegetables
- Protect your lips from excessive sun exposure
- Maintain good oral hygiene and visit your dentist regularly
- Get vaccinated against HPV, especially for teenagers and young adults
The importance of regular dental check-ups
Many cases of mouth cancer are detected by dentists during routine examinations. At The Priors Dental Practice, we carry out oral cancer screenings as part of your regular check-up. We look for early warning signs such as:
- Persistent ulcers or sores that don’t heal
- Lumps or thickened areas in the mouth or neck
- Red or white patches
- Numbness or unusual sensations
- Difficulty swallowing or speaking
If anything suspicious is found, we’ll refer you for further investigation promptly. Early detection can significantly improve treatment outcomes and survival rates.
Mouth Cancer – Final thoughts
Mouth cancer is a serious disease, but understanding the causes and taking action can significantly reduce your risk. Lifestyle choices such as quitting smoking, moderating alcohol use, and maintaining good oral hygiene are among the most powerful steps you can take. At The Priors Dental Practice, your health is our priority. If you have any concerns or would like to book an oral cancer screening, please don’t hesitate to get in touch with our friendly team.
If you’d like to schedule an appointment or learn more about oral cancer screenings, contact us here today.
