The answer is yes, and significantly , in several ways: It causes discoloration of the filling due to the chemicals in smokethis change is real and visible
[195] A 2008 study of a densely interconnected network of over 12,000 individuals found that smoking cessation by any given individual reduced the chances of others around them lighting up by the following amounts: a spouse by 67%, a sibling by 25%, a friend by 36%, and a coworker by 34%
In a May 2007 report on reducing tobacco use in the United States, the IOM concluded that while strengthening existing tobacco control measures (e.g., state anti-smoking programs, excise taxes, indoor smoking restrictions) would result in some additional decline in smoking prevalence, more substantial and enduring reductions in tobacco use would only come from stronger federal regulation
Cancer and oral lichen planus in a Swedish population
For pets, contact a veterinarian if any ingestion has occurred