ScienceDaily for July 22, 2010 reported on smoking and gum disease.
In order to determine the effect of quitting smoking on select oral bacteria researchers launched a long-term study, at the beginning of which, plaque samples were collected from 22 initial smokers. Twelve months following nonsurgical periodontal therapy and counseling samples were again taken from all 22 participants, however, 11 were quitters and 11 still smoked. Results showed decreased levels in various bacterial pathogens as well as an increase in health-associated species in those patients who no longer smoked.
