14 May 2008
Good long-term dental hygiene and care could help decrease the risk of developing certain cancers, according to Japanese researchers.
In a study of thousands of patients, scientists from the Aichi Cancer Center in Nagoya and Nagoya University Graduate School of Medicine found a strong correlation between tooth loss and increased risk of esophageal, head and neck, and lung cancer.
The results showed that people with tooth loss were 136 per cent more likely to develop esophageal cancer, had a 68 per cent increased risk of developing head and neck cancer and a 54 per cent greater chance of developing lung cancer.
Lead researcher, Dr Akio Hiraki explained: "Tooth loss is a common consequence of chronic bacterial infection and may, therefore, serve as a surrogate for chronic infection and inflammation, which in turn may be important to the pathogenesis of cancer."
The report claims that in addition to inflammation, tooth loss in cancer patients may also reflect an unhealthy lifestyle and diet which can contribute to cancer risk and development.
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