Is Vaping Bad for Your Teeth? (Yes, According to Research) Most of us know that cigarettes are bad for our teeth, but did you know vapes also have a harmful effect on our oral health? Vapes Cause: Dry mouth Gum Disease and Vaping might seem harmless, but it's harming your smile and your health. Dr. Mario from Randwick Dental Clinic warns that it irritates enamel, causes decay and gum disease, and dries up protective Does Vaping Cause Tooth Decay? What You Should Know E Cigs & Oral Health: How Vaping Affects Gums & Teeth Evidence grows for vaping's role in gum disease