Extra file 7: Desk S7. Epidemiological/scientific experiments investigating the association in between snus use and periodontal disease and/or gingival condition. Several tobacco studies have focused on snus rather than cigarettes. The widespread narrative suggests snus is safer than cigarettes, mainly due to not enough smoke inhalation. This aspect is important https://maps.google.es/url?q=https%3A%2F%2Ficyshop.es%2Fcollections%2Fvapes