Can My Dentist Tell If I Vape? Insights from Experts Can Dentists Tell You Vape? Dental Signs Revealed Can Dentist Tell if You Vape? A Comprehensive Guide 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 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