Understanding Vaping Dental Health Risks Does Vaping Cause Tooth Decay? What You Should Know Vaping looks harmless but the damage isnt., The first contact of vape smoke is your gums and teeth and over time: * Pink gums can turn dark or black * Teeth can go from white to yellow brown, Just PRO TIP Vaping is often sold as harmless, but we're here to tell you your lungs and teeth would disagree. Stay in shape and avoid the vape!