Ahmmad B, Ibraheem L. Anti-Microbial Effect Of Different Time’sexposureofozonized Gas And Ozonized Water Onperiodontalpathogens (In Vitro Study). J Bagh Coll Dent [Internet]. 15Jun.2017 [cited 30Nov.2019];29(2):78-2. Available from: http://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/1865