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Study finds dental health may lower risk of head, neck cancer – World News Network

Washington DC [US], September 23 (ANI): Significant correlations between dental health and survival among people with head and neck cancer were discovered by a multinational study published in the Journal of the National Cancer Institute.
Increased survival was linked to better oral health, as measured by the percentage of natural teeth and dental visits before diagnosis.
Importantly, persons who visited the dentist more frequently had a higher likelihood of having their cancer diagnosed at an earlier, less deadly stage than those who visited the dentist infrequently or never.
In collaboration with the International Head and Neck Cancer Epidemiology (INHANCE) consortium, researchers from the UNC Lineberger Comprehensive Cancer Centre, UNC Adams School of Dentistry, and Moffitt Cancer Centre in Tampa, Florida, published a study in the Journal of the National Cancer Institute.
“The INHANCE consortium’s patient data allowed us to be as thorough as possible and identify robust associations between oral health and survival,” said lead author Jason Tasoulas MD, DMD, a current PhD candidate. “We assembled a diverse and experienced team to examine records of approximately 2,500 patients from eight countries to carry out our state-of-the-art statistical analyses.”
Head and neck cancer patients were asked to self-report aspects of their oral health and hygiene, including gum bleeding, tooth brushing frequency and mouthwash use, as well as the number of natural teeth and frequency of dental visits they had during a 10-year period prior to their cancer diagnosis.
Those who had frequent dental visits (more than five visits in a reported decade) had higher overall survival at five and 10 years (74 per cent and 60 per cent, respectively) compared to those with no dental visits (54 per cent at five years and 32 per cent at 10 years).
This finding was most pronounced among people with cancers of the oropharynx, which consists of the structures in the back of the throat, including the base of the tongue, tonsils and soft palate. Having no natural remaining teeth was associated with a 15 per cent lower five-year overall survival compared to those with more than 20 natural teeth. Survival differences of less than 5 per cent, which were not significant, were found for patient-reported gum bleeding, tooth brushing and mouthwash use.
While survival has improved during the past decades due to treatment advances, head and neck squamous cell carcinoma (HNSCC) is the sixth most common malignancy worldwide and accounts for about 4 per cent of all cancers in the United States. In 2023, an estimated 66,920 people will be diagnosed with the disease in the U.S. The main environmental risk factor for the disease is tobacco use but alcohol consumption and testing positive for the human papillomavirus also increase a person’s risk for the disease.
“This current research effort capitalizes on previous data collection efforts by our team in North Carolina through the Carolina Head and Neck Cancer Epidemiology (CHANCE) study to investigate the role of oral health in patients with head and neck squamous cell carcinoma. The present report is based on a larger-scale study, accounting for geographic variability and capturing more oral health variables,” said Kimon Divaris, DDS, PhD, study author and James Bawden Distinguished Professor at the UNC Adams School of Dentistry and UNC Gillings School of Global Public Health.
“Inspired by Dr Divaris’ previous work, we sought out opportunities to collaborate with a larger network of epidemiologists, surgeons, physicians, dentists and scientists from all over the world to address an important but often overlooked problem for patients with head and neck squamous cell carcinoma,” said corresponding author Antonio L Amelio, PhD, vice chair of research in the Head and Neck Oncology Department and associate member of the Tumor Biology Department at Moffitt Cancer Center, and an adjunct associate professor at the UNC Department of Otolaryngology-Head and Neck Surgery. “Our hope is that these findings become a standard part of guidelines implemented for the prevention and management of head and neck squamous cell carcinomas in the near future.”
Carole Fakhry, MD, MPH, the Charles W. Cummings MD Professor of Otolaryngology at Johns Hopkins School of Medicine, who was not involved in the research, called the findings significant. “This is an important study that highlights the interplay between oral health and head and neck squamous cell carcinoma and overall survival. While we seek biomarkers to predict which patient will do well, this study points out features of a history and examination that are associated with survival. Additionally, this may lead us down the road of prevention of these cancers.” (ANI)


Disclaimer: This story is auto-generated from a syndicated feed of ANI; only the image & headline may have been reworked by News Services Division of World News Network Inc Ltd and Palghar News and Pune News and World News


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