Can your dentist tell if you smoke or vape? , Short answer: not really but there is a subtle tell., Nicotine is a vasoconstrictor, which means it can reduce blood flowso when your gums should be Can a Dentist Tell If You Smoke? Yes, and Here's How Can Dentists Tell if You Vape? Can Dentists Tell If You Vape? What Your Dentist Sees That You Don't Pymble Dental Practice Can a Dentist Tell if you Smoke or Vape Weed? Prime Dentistry