E-Cigarette effects on oral health: A molecular perspective

Area of Science:

• Oral Health Research
• Toxicology
• Public Health

Background:

• Electronic cigarettes (e-cigarettes) are increasingly used as smoking alternatives.
• Concerns exist regarding the unknown long-term health effects of e-cigarette use, particularly among young non-tobacco users.
• The oral cavity is a primary site for e-cigarette aerosol deposition, exposing it to numerous harmful substances.

Purpose of the Study:

• To review the toxicological properties of compounds found in e-cigarette aerosols.
• To explore the cytotoxic, genotoxic, and inflammatory effects of these compounds on oral health.
• To investigate the underlying molecular mechanisms of e-cigarette-induced oral health issues.

Main Methods:

• Literature review of toxicological studies on e-cigarette aerosol components.
• Analysis of research on the impact of e-cigarette aerosols on oral tissues and host-microbial interactions.
• Examination of studies detailing molecular pathways, including reactive oxygen species (ROS) generation and DNA damage.

Main Results:

• E-cigarette aerosols contain nicotine, volatile organic compounds, heavy metals, and carcinogens.
• Aerosol exposure disrupts oral microbial balance, leading to gingivitis and periodontitis.
• Toxic components induce oxidative stress, DNA damage, and inflammatory responses, potentially causing pre-malignant oral epithelial lesions.

Conclusions:

• E-cigarette aerosols have significant cytotoxic, genotoxic, and inflammatory effects on oral health.
• Understanding these effects is vital for assessing risks associated with e-cigarette use.
• Further research is necessary to inform regulatory decisions and protect public oral health.