Scientists find link between gum health and lung function

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While we often associate good dental hygiene with a beautiful smile, recent research presented at EuroPerio10, a prestigious congress on periodontology, has illuminated an intriguing connection between gum health and respiratory well-being.

Dr. Anders Røsland, from the University of Bergen in Norway, spearheaded a study to investigate the relationship between gum health and lung function.

Although previous research hinted at such a connection, particularly in relation to chronic lung conditions, this study aimed to explore this association in a broader community setting.

The study examined data from 1,021 participants who underwent comprehensive dental check-ups, including X-rays, oral examinations, and assessments of gum disease severity. Key findings from the study included:

  • 28% of participants exhibited moderate gum disease.
  • 7% faced severe gum disease.
  • 65% showed either no signs of gum disease or mild symptoms.

Lung function was evaluated using spirometry, a test that measures the volume and speed of exhaled air. Two key metrics from this test were the Forced Expiratory Volume (FEV1) and Forced Vital Capacity (FVC).

The study discovered a noteworthy trend: as the severity of gum disease increased, there was a corresponding decline in lung function measurements.

This correlation remained robust even after accounting for factors like age, smoking habits, body weight, diabetes, and education.

Participants with severe gum disease exhibited lower lung function measurements compared to those with mild or no gum disease.

Interpretation and Future Research

The study suggests a broader pattern: as gum health deteriorates, lung function may also decline.

One theory is that gum inflammation could trigger airway inflammation. Additionally, inhaling dental plaque laden with bacteria might be another contributing factor.

However, it’s essential to recognize that while this study highlights an association, it does not establish causation.

Dr. Røsland emphasizes the need for further research to firmly establish the cause-and-effect relationship between gum health and lung function.


This study underscores the potential significance of maintaining gum health beyond a beautiful smile.

If the link between gum disease and respiratory health is confirmed, it could lead to a reevaluation of dental care, emphasizing its importance not only for oral health but also for overall respiratory well-being.

If you care about dental health, please read studies about best food for tooth and gum health, and how to prevent and reverse gum disease.

For more information about dental health, please see recent studies about diabetes and gum disease, and results showing this diet could help treat gum disease.

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