Scientific review finds e cigarettes likely cause lung and oral cancer Los Angeles Times E cigarettes Found to Cause Change in Mouth Bacteria Which Could Lead to Gum Disease or Oral Cancer Respiratory Therapy 2FIRSTS Vietnam Authorities Crack Down on Illegal E Cigarettes Sold on Facebook Vaping can cause cancer, say researchers but still isn't as damaging as smoking cigarettes. More than 5.5 million Britons currently use e cigarettes, which have long been viewed as a safer alternative Study finds 14% of Vietnamese students tried e cigarettes despite ban