Hiroshima Study Links 21 Teeth to 21-Month Longer Pancreatic Cancer Survival

1 articles · Updated · SciTechDaily · Aug 16

339 pancreatic cancer patients who underwent surgery at Hiroshima University Hospital showed a stark split: those with 21 or more natural teeth lived a median 60.7 months, versus 39.1 months for those with 20 or fewer.
The tooth-count link held even after adjustments for tumor stage, lymph node spread, surgical margins, chemotherapy and nutritional status, suggesting oral health may capture broader long-term vulnerability rather than just cancer severity.
Chewing function itself did not independently predict survival, leading researchers to argue that tooth loss may reflect accumulated inflammation, frailty, smoking, diet, chronic illness and access to dental care.
The single-center Japanese study does not prove causation, and the team said larger multi-hospital studies are needed to test whether oral bacteria or chronic inflammation directly influence pancreatic cancer progression.