Supplemental file 7: Table S7. Epidemiological/medical studies investigating the association among snus use and periodontal ailment and/or gingival condition. Snus does contain nicotine, so it’s addictive -- you may get hooked on it. Quitting this routine has exactly the same unpleasant Unintended effects as if you stop smoking, including headaches https://images.google.es/url?q=https%3A%2F%2Ficyshop.es%2F%3Fcollections%2Fsnus