Changes in Oral Health in Tobacco Cigarettes Smokers After Switching to Combustion-Free Nicotine Delivery Systems

Participants in Arm A will continue smoking their own cigarette brand as usual.

Participants in Arm B will trial and familiarize with a selection of C-F NDS in order to choose the product of their preference. They will be trained and counselled on the chosen C-F NDS. Prior to check-out, participants wishing to use a heated tobacco device will receive one kit and a full 2 weeks supply of tobacco sticks of their choice (they will receive a number of tobacco sticks per day corresponding to the number of cigarettes smoked at baseline); those wishing to use a vaping product will receive one vaping kit and a full 2 weeks supply of e-liquids of their choice (they will receive twelve 10 ml refill containers).

Participants in Arm C will continue not smoking or use any form of tobacco or nicotine-containing products.