Vaping and Oral Health: Can Dentists Tell You Vape? 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 vape? The answer is YES!, Heres how we know: Dry mouth Leads to more plaque & cavities Inflamed gums Nicotine reduces blood flow, causing redness & swelling Can Dentists Tell If You Vape? Smile Stories Can a Dentist Tell If You Vape? R+R Dental