Oral Cancer

This cancer refers to the group of cancers that occur in the oral cavity. For example, including the lips, tongue, cheeks, floor of the mouth, gums, and sometimes extending to the throat. It starts in the cells lining the mouth and can be aggressive if not detected and treated early.

The most commonly affected areas include the sides of the tongue and the floor of the mouth. However, this cancer can also occur on the lips, inside the cheeks, gums, and the back of the throat.

This cancer represents up to four percent of all cancers diagnosed in Australia, with a notable increase in incidence in recent years. Moreover, it predominantly affects people over the age of 40 and is more common in men than women.

Early signs may be subtle and include persistent sores, lumps, or ulcers that do not heal within two weeks; white or red patches in the mouth; unexplained bleeding; and difficulty with chewing or swallowing. However, in its earliest stages, oral cancer may not produce any symptoms.

Late-stage diagnosis of this cancer often occurs because early-stage oral cancers usually do not cause symptoms, or the symptoms may be similar to less serious conditions, leading to potential misdiagnosis or delayed diagnosis.

Risk factors include tobacco use, excessive alcohol consumption, HPV infection, areca nut (betel quid) chewing, exposure to UV light (for lip cancers), immunosuppression, a family history of cancer, and prior cancer therapies.

Certainly, tobacco contains carcinogens that can cause mutations in the cells of the mouth, leading to cancer. This risk is present in all forms of tobacco use, including smoking cigarettes, cigars, pipes, and also smokeless tobacco. The combination of tobacco use with alcohol consumption significantly increases the risk.

• Yes, there is a strong link. Alcohol can act as a solvent, enhancing the penetration of other carcinogens into the cells lining the mouth. It also metabolizes into acetaldehyde, a toxic chemical that can damage DNA and promote cancer.

Yes, while smoking is a major risk factor, oral cancer can also appear in non-smokers. Other risk factors like alcohol use, HPV infection, and sun exposure (for lip cancer) can contribute to the development of oral cancer in individuals who have never smoked.

HPV, particularly strain HPV16, is a significant risk factor for oropharyngeal cancer (cancer in the back of the mouth and throat).

Yes, men are at a higher risk of developing this cancer. 

Oral cancer is most commonly diagnosed in individuals over the age of 40. Risk increases with age, and the majority of cases are found in the older population.

Reducing the risk involves quitting tobacco use, moderating alcohol consumption, protecting lips from sun exposure, maintaining a healthy diet rich in fruits and vegetables, practicing safe sex to reduce HPV transmission, and getting vaccinated against HPV.

Yes, particularly for the lips. Chronic sun exposure can lead to cancer on the lips. 

Dentists can perform screenings for oral cancer as part of routine dental examinations. This includes checking not just the teeth but also the entire oral cavity for any unusual changes or lesions.

Treatments include surgery to remove the cancerous growths, radiation therapy to destroy cancer cells, and chemotherapy to target cancer cells throughout the body. The specific treatment plan depends on the stage and location of the cancer​.

Early detection significantly increases the chances of successful treatment and can lead to a cure. 

The five-year survival rate for this cancer is approximately 50%. However, survival rates vary depending on several factors, including the cancer’s stage at diagnosis, location, and the patient’s overall health.

Individuals with higher risk factors may need more frequent screenings​.

No, denture wearers should still undergo regular oral cancer screenings. Dentists will examine the gums and other soft tissues in the mouth to check for abnormalities, which is crucial even for those without natural teeth.

Precancerous lesions in the mouth are abnormal cell growths that can potentially develop into cancer. They are not yet cancerous but may become so if left unchecked. Regular dental check-ups can aid in the early detection of these lesions, improving the chances of preventing the development of oral cancer​.

This cancer is considered a type of head and neck cancer. It shares risk factors with other cancers in this category, such as tobacco and alcohol use, HPV, and Epstein-Barr virus (EBV) infections. A family history of these cancers can also be a risk factor.

A diet lacking in fruits and vegetables may increase the risk of oral cancer. Nutrient-rich foods contain antioxidants and other compounds that can help protect cells from damage that could lead to cancer. Conversely, a balanced diet rich in these foods may help reduce the risk..

Yes, HPV vaccines, which protect against the high-risk strains of HPV known to cause cancers, can reduce the risk of developing oral cancers associated with HPV infection.

Symptoms of advanced this cancer may include persistent lumps or sores in the mouth that do not heal, severe pain, difficulty chewing or swallowing, significant weight loss, and changes in speech. If any of these symptoms are present, it is critical to seek medical attention immediately​.

A self-exam for oral cancer involves looking and feeling inside the mouth for lumps, sores, or white or red patches. Using a mirror and good lighting, examine all areas of the mouth, including the roof, floor, tongue, cheeks, and the back of the throat. Report any abnormalities to a healthcare professional.

This cancer can be particularly aggressive due to its ability to quickly invade surrounding tissues and spread to other parts of the body (metastasize). Additionally, its location in the mouth can complicate early detection, as changes may be subtle and mistaken for other benign conditions.

Lifestyle changes to help prevent oral cancer include quitting smoking, reducing alcohol intake, maintaining good oral hygiene, eating a balanced diet, protecting lips from the sun, and having regular dental check-ups that include oral cancer screenings.

To protect against lip cancer, use a lip balm with a high SPF, avoid excessive sun exposure, especially during peak hours, and wear a wide-brimmed hat to shield the face and lips from UV rays.

The Cancer Council provides a helpline (13 11 20) for information and support, support groups for shared experiences, practical services like transport to treatment, wig services to help with self-confidence, and an online community for further support. They also offer e-learning resources for cancer education and podcasts for additional information and support​.