How Persistent Inflammation Creates high Risk Environment for Oral Cancer, Expert Shares

Oral cancer is frequently regarded as a disease primarily associated with the use of tobacco or alcohol. Although these two are the most significant risk factors, researchers are increasingly drawing attention to another overlooked yet very strong contributor, which is chronic inflammation. Persistent inflammation in the mouth can quietly damage tissues over time, setting the stage for serious conditions, including oral cancer.

According to Dr Brunda M S, Senior Consultant - Internal Medicine, Aster CMI Hospital, Bangalore, persistent inflammation is not an overnight occurrence, but it does create an unhealthy environment in the oral cavity that allows abnormal cells to thrive. Read ahead to know everything she shared with us.

What is Persistent Oral Inflammation

Inflammation is a natural defense response of the body to injury or infection. It can be seen in the mouth as a result of several factors, including gum diseases, lack of dental care, irritating teeth, poorly fitting dentures, tobacco chewing, smoking, or heavy drinking. While inflammation in the short term is a healing process, it can cause problems when it becomes chronic.

Gingivitis, periodontitis, scar-like lesions in the mouth that do not heal, and recurrent infections can all contribute to the irritation of the oral tissues. Eventually, the continuous inflammatory state will be a major contributor to the injury and not healing of the tissues.

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Link Between Chronic Inflammation and Oral Cancer Risk

When asked to explain the link, Dr Brunda replied, “Persistent inflammation creates a high-risk environment for oral cancer by continuously irritating the tissues in the mouth. When inflammation lasts for a long time, it causes repeated cell damage and repair. This increases the chances of DNA damage in oral cells.”

Every cycle of damage and repair increases the possibility of errors in cell regeneration. Such errors can result in DNA alterations, which is one of the primary steps in tumour formation. The release of inflammatory chemicals in the body further aggravates the problem as they assist in the growth of abnormal cells and hinder the death of damaged cells through necrosis.

Role of Inflammatory Chemicals and Immunity

Chronic inflammation does not only produce new cells and radicals but also reduces the number of healthy oral cells. Over time, these substances change the tissue environment, which is more favourable for abnormal cells to grow and to survive.

Dr Brunda stated that chronic inflammation is then accompanied by the weakening of the local immunity in the oral cavity. With the immune response being suppressed, it becomes harder for the body to detect and kill the cancerous cells at the very beginning of their development. This allows the bad cells to stay unnoticed and multiply.

Common Triggers That Keep Inflammation Active

Several everyday habits and conditions can sustain inflammation in the mouth, including:

• Periodontitis and neglect of oral hygiene
• Using tobacco (smoking or chewing)
• High consumption of alcohol
• Untreated oral infections or ulcers
• Sharp or broken teeth causing repeated injury

If the above triggers are not dealt with, the inflammation turns into a chronic condition, which in turn raises the risk of oral cancer in the long run.

Bottomline

Persistent inflammation in the mouth is not harmless, and experts warn that it creates ongoing tissue damage, weakens local immunity, and increases the risk of DNA changes that can lead to oral cancer. Therefore, controlling inflammation through good oral hygiene, regular dental visits, and avoiding tobacco and excessive alcohol is crucial for long-term oral health.