Can Dentist Tell if You Vape? A Comprehensive Guide News Can Dentist Tell if You Vape Can Dentists Tell If You Vape? What Your Dentist Sees That You Don't Pymble Dental Practice Can Dentists Tell If You Vape? Smile Stories 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