Electronic Cigarette Use Promotes a Unique Periodontal Microbiome

Area of Science:

• Oral microbiology
• Periodontal health
• E-cigarette research

Background:

• Electronic cigarettes (e-cigs) are increasingly popular, often perceived as safer than conventional smoking.
• Conventional smoking is a major risk factor for periodontitis, a common oral disease.
• Long-term e-cig effects on oral health and the microbiome remain under-investigated.

Purpose of the Study:

• To investigate the longitudinal effects of e-cig use on the oral microbiome and periodontal health.
• To compare the oral microbiome of e-cig users with conventional smokers and nonsmokers.

Main Methods:

• A 6-month longitudinal study involving 84 participants: e-cig users, conventional smokers, and nonsmokers.
• Assessment of periodontal condition, cytokine levels, and subgingival microbial community composition.
• Analysis of microbiome diversity and taxonomic composition across the three cohorts.

Main Results:

• E-cig users developed a unique periodontal microbiome, distinct from both smokers and nonsmokers.
• The e-cig microbiome shared characteristics with both conventional smokers and nonsmokers, but was enriched in specific bacteria.
• Periodontal health and cytokine levels correlated with specific pathogenic bacteria across all cohorts.

Conclusions:

• E-cigarette use induces a unique oral microbiome state, presenting distinct oral health challenges.
• The e-cig microbiome represents a stable state between conventional smokers and nonsmokers.
• Findings suggest a unique periodontal risk associated with electronic cigarette use.