This study investigate factors associated with the initiation and continuation of snus use in adolescents in Norway. The associations with adolescents’ own educational plans, the parents’ educational level(s) and tobacco habits were estimated.
These findings may aid in developing and targeting tobacco prevention strategies aimed at young people. Tobacco prevention measures should start at the elementary school level. The strong association with parental tobacco habits underlines the importance of parents’ influence on their children’s tobacco use.

Snus is a smokeless, ground tobacco product, which is most commonly placed in the mouth between the gum and lip. Like other tobacco products, snus contains the biologically active and addictive substance, nicotine.

To compare two home-based over-the-counter (OTC) bleaching tray products with similar hydrogen peroxide (HP) concentrations with respect to tooth lightening efficacy and potential to induce negative side effects in tobacco- and non-tobacco users as well as degree of satisfaction with product handling. The HP concentrations were near the regulation limit for bleaching products of 6% set by the European Union in 2011.

The combination of LA-ICP-MS and HR-ODM appears to be a powerful combination for detection of particles in oral tissues; optical microscopy provides an overview with histological references, whereas LAICP-MS identifies the chemical composition.