Dental Health Risks of Smoking Cigarettes, Marijuana and Vaping Just Think Twice Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times Vaping and Oral Health Not as Safe an Alternative to Smoking as You May Think How Vaping Affects Dental Health Vaping can negatively affect oral health and increase the risk of gum and tooth problems. Vaping may dry the mouth and alter oral bacteria, increasing the risk of cavities, gum inflammation,