How Smoking and E Cigarettes Affect Your Dental Health E cigarettes Found to Cause Change in Mouth Bacteria Which Could Lead to Gum Disease or Oral Cancer Respiratory Therapy impact of electronic cigarette on oral enzymes E Cigs & Oral Health: How Vaping Affects Gums & Teeth Smoking and Gum Disease Vaping and Oral Health Not as Safe an Alternative to Smoking as You May Think