The Adverse Effects of Electronic Cigarettes on Oral Health: Where Do We Stand?

Background/Objectives. Electronic cigarettes allow smokers to consume nicotine, a highly addictive substance, without burning tobacco. Since their commercialization in early 2004, electronic cigarettes have become popular in the Asian market and then worldwide. Initially conceived as an alternative to combustible smoking, they have gradually established themselves as a mass consumption product, raising both hopes for the reduction of the risks caused by burned cigarettes and concerns about their use among non-smokers, especially young people. Currently, because of their availability, accessibility to non-smokers, including young people, and their manageability, electronic cigarettes are causing more concern than hope among health professionals. This narrative review aimed to synthesize current evidence on the different chemical components generated by electronic cigarette devices and their effects on oral health. We specifically sought to (i) compile and discuss the available evidence regarding the effects of each chemical component in the e-cigarette aerosols on oral health outcomes, and (ii) feature the risks associated with e-cigarette use and how to ovoid/prevent them.