Ahmmad, B.Z. and Ibraheem, L.M. 2017. Anti-Microbial Effect Of Different Time’sexposureofozonized Gas And Ozonized Water Onperiodontalpathogens (In Vitro Study). Journal of Baghdad College of Dentistry. 29, 2 (Jun. 2017), 78–82. DOI:https://doi.org/10.12816/0038754.