Does vaping cause teeth stains?” This is a prevalent issue among those who vape. While vaping does not cause teeth stains directly, the compounds in e-cigarette aerosols, such as nicotine and other substances, can contribute to dental discoloration over time. Maintaining proper oral hygiene practises, such as regular brushing, flossing, and dental check-ups, is critical in reducing the incidence of vaping-induced teeth stains. A dentist can provide additional advice on how to keep your smile healthy while using e-cigarettes.