New study links poor oral health to elevated risk of stomach and oesophageal cancer
A new study suggests that poor oral health increases the risk of developing stomach and oesophageal cancer.
Researchers at Harvard University found that people who have gum disease have a higher risk of developing two types of cancer: stomach cancer and oesophageal cancer. Scientists discovered that microbes, which cause gum disease, could play a role in elevating the risk of cancerous cells found in the stomach and oesophagus.
The Harvard team analysed data from 150,000 men and women. Data was collected and evaluated over a 28 year period. The researchers found that the risk of developing stomach cancer was 52% higher in people who have a history of gum disease.
The risk of developing oesophageal cancer was 43% higher. The figures increased in line with the severity of gum disease. Individuals who had lost teeth due to advanced gum disease were even more likely to have cancer than those with mild gum disease.
The study does not state that gum disease causes cancer, but it is clear that it can be a risk factor and this could help medical professionals, dentists and members of the public to identify risks and make positive changes.
If people are aware of the potential impact of poor oral hygiene and leaving symptoms of gum disease untreated, they may be more likely to adopt better oral hygiene practices. Dental and medical professionals can also use the data to encourage patients to look after their teeth and to identify individuals who are at risk.
The most effective way to lower gum disease risk is to maintain a good daily oral hygiene routine, which should include twice-daily brushing for at least 2 minutes each time and flossing or interdental brushing. Symptoms of gum disease include swelling, pain, redness and bleeding when brushing.
The findings of the study were published in Gut magazine.
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