It looks like same happens with dental amalgam fillings too (which also contains mercury): https://www.youtube.com/watch?v=Bw94F94FZqA https://www.youtube.com

It looks like same happens with dental amalgam fillings too (which also contains mercury): https://www.youtube.com/watch?v=Bw94F94FZqA https://www.youtube.com/watch?v=Bw94F94FZqA Most say it's safe (the FDA too) and that video just shows water vapor because mercury vapor wouldn't rise like that due to it's weight, but I'm not sure what to believe. http://quackfiles.blogspot.hu/2005/04/smoking-teeth-truth-gets-smoked-out.html http://quackfiles.blogspot.hu/2005/04/smoking-teeth-truth-ge... https://en.wikipedia.org/wiki/Dental_amalgam_controversy https://en.wikipedia.org/wiki/Dental_amalgam_controversy