How Can A Dentist Tell If You Vape Marijuana Can Dentist Tell If You Vape? Does Vaping Affect Teeth I Vaped Once Can your dentist tell if you vape? The answer is YES! Here's how we know: Dry mouth Leads to more plaque & cavities Inflamed gums Nicotine reduces How Dentists Can Tell If You Vape: Oral Health Effects Can a Dentist Tell if you Smoke or Vape Weed? Prime Dentistry