DENTISTRY, Precaution And Prevention

Risk of liver cancer due to poor oral hygiene

Does the title have alarmed you ! Yes, I am equally shocked on looking at the study. A research with 6 years of follow ups have found that, there is a strong correlation between risk of developing liver cancer and poor oral hygiene. As I always highlight about the importance of oral health and how it has interlinked with other body structures, now comes an another information which urges everyone to consider oral hygiene with utmost seriousness.

Poor oral hygiene generally includes inflamed and bleeding gums, loosened tooth structure, plaque and calculus with high microbial accumulation, and more likely accentuated with habits. Maintaining healthier oral environment is of a  necessary requirement in this fast moving world.

What causes the risk of liver cancer due to poor oral care? 

Well, the exact etiology is unclear as of now; however, there are certain possible connections which support this condition firmly.

Reactive oxygen metabolites:

You must be emphasized everytime to consume ample of antioxidant rich diets for detoxification of the body List of antioxidant rich food products. Perhaps, the otherwise oxidants are highly toxic, which emerges in the body particularly during chronic inflammatory conditions. Periodontitis is an irreversible chronic inflammatory condition of the gums and its supporting structure which could produce more number of reactive oxygen metabolites/ substance. These undesirable ROS are predominant reason for cancer development in any part of the body. Thus, poor oral hygiene has direct contribution for increased ROS level in the body. When this is augmented with smoking, the outcome would be still worse.

Oral and gut microbes : 

Liver is one main organ for the elimination of virulent microbes from the body. When liver is affected with cirrhosis, hepatitis, alcohol or any other condition, its degraded functional capacity would certainly affects the microbial elimination process as well. As a result, blooming of microbes would eventually takes place within the respective structures,which further weakens the liver and make it prone for cancerous growth.

Low nutrient diet :

When tooth structure is lost due to poor oral health, more likely you are left with soft diet options; however they are certainly deprived from adequate nutritional requirements, particularly of vitamins and minerals. This inturn attribute to the risk of cancer development.


Liver cancer is considered as the sixth most common cancer in the world. Nevertheless, you develop cancer or not, it is wiser to maintain proper oral hygiene to avoid one or the other potential risk factors.


Reference : 

Haydée WT Jordão, Gerry McKenna, Úna C McMenamin, Andrew T Kunzmann, Liam J Murray, Helen G Coleman. The association between self-reported poor oral health and gastrointestinal cancer risk in the UK Biobank: A large prospective cohort study. United European Gastroenterology Journal, JUNE 8,2019; 205064061985804


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