E-Cigarettes and tobacco heating products cause significantly less staining to teeth than conventional cigarettes, a recent study has suggested. In a part of the study conducted at British American Tobacco, scientists assessed and compared a novel e-cigarette (EC), a tobacco heating product (THP) and a conventional cigarette for their impact on teeth enamel staining.

While cigarette smoke caused significant enamel discoloration, vapour from the EC and aerosol from the THP caused only minimal staining. The results are published in the American Journal of Dentistry.