Puffing cigarettes can increase the likelihood that certain bacteria will not only set up camp but will build a fortified city in the mouth and fight against the immune system thereby making you vulnerable to oral diseases new research suggests. Bacteria can form biofilms on most surfaces including teeth heart valves and the respiratory tract. Biofilms are composed of numerous microbial communities often made up of complex interacting and coexisting multispecies structures. Does smoking cause sensitive teeth? Once a pathogen establishes itself within a biofilm it can be difficult to eradicate as biofilms provide a physical barrier against the host
