Oral Cancer / Mouth Cancer Screenings

Oral cancer, also known as mouth cancer, is cancer of the lining of the lips, mouth, or upper throat. In the mouth, it most commonly starts as a painless white patch, that thickens, develops red patches, an ulcer, and continues to grow. When on the lips, it commonly looks like a persistent crusting ulcer that does not heal, and slowly grows. Other symptoms may include difficult or painful swallowing, new lumps or bumps in the neck, a swelling in the mouth, or a feeling of numbness in the mouth or lips.

Risk factors include tobacco and alcohol use. With both tobacco and drinking alcohol, the risk of oral cancer is 15 times greater. Other risk factors include HPV infection, chewing paan, and sun exposure on the lower lip. Oral cancer is a subgroup of head and neck cancers. Diagnosis is made by biopsy of the concerning area, followed by investigation with CT scan, MRI, PET scan, and examination to determine if it has spread to distant parts of the body.

Oral cancer screenings are a very important part of a dental visit for our patients. The oral cancer screening is often completed with an ultraviolet light or similar device that allows us to view issues that can't always be detected by the human eye under normal conditions.

In 2018, oral cancer occurred globally in about 355,000 people, and resulted in 177,000 deaths.Between 1999 and 2015 in the United States, the rate of oral cancer increased 6% (from 10.9 to 11.6 per 100,000). Deaths from oral cancer during this time decreased 7% (from 2.7 to 2.5 per 100,000). Oral cancer has an overall 5 year survival rate of 65% in the United States as of 2015. This varies from 84% if diagnosed when localized, compared to 66% if it has spread to the lymph nodes in the neck, and 39% if it has spread to distant parts of the body. Survival rates also are dependent on the location of the disease in the mouth.

Sign and Symptoms of Oral Cancer

The signs and symptoms of oral cancer depend on the location of the tumor but are generally thin, irregular, white patches in the mouth. They can also be a mix of red and white patches (mixed red and white patches are much more likely to be cancerous when biopsied). The classic warning sign is a persistent rough patch with ulceration, and a raised border that is minimally painful. On the lip, the ulcer is more commonly crusting and dry, and in the pharynx it is more commonly a mass. It can also be associated with a white patch, loose teeth, bleeding gums, persistent ear ache, a feeling of numbness in the lip and chin, or swelling.



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