2014-2015 Pilot Project: Effects of Electronic Nicotine Delivery Systems on the Oral Microbiome

E-cigarettes are becoming popular because many consider them safer than cigarettes. Our research has shown that cigarettes increase the risk for several oral diseases, such as gum disease, cancer and cavities, by causing pathogenic bacteria to colonize the mouth. Others have shown that nicotine may be similarly harmful; however, the evidence is unclear. Since the main component of e-cigarettes is nicotine, this project will explore the effects of e-cigarettes on the oral cavity and see if they are similar to cigarettes with respect to colonization of pathogenic bacteria. This will improve our understanding of the risks associated with the use of e-cigarettes.

Project Leadership

Project Leader

Purnima Kumar, BDS, MDS, PhD
Associate Professor, College of Dentistry
The Ohio State University




Other Investigators

  • Micah Berman, JDAssistant Professor, College of Public Health and the Moritz College of Law, The Ohio State University
  • Haikady Nagaraja, PhD, Professor, College of Public Health, The Ohio State University  

The Ohio State University, Center of Excellence for Regulatory Tobacco Science (OSU-CERTS), is supported by grant number P50CA180908 from the National Cancer Institute, National Institutes of Health and Food and Drug Administration Center for Tobacco Products (CTP). The content in this website is solely the responsibility of OSU-CERTS and does not necessarily represent the official views of the National Institutes of Health or the Food and Drug Administration.