Periodontal diseases, which are prevalent in most populations, may have wide-ranging systemic effects in susceptible individuals, and may act as a potential independent risk factor for complications of diabetes mellitus, exacerbating the existing disorder of the patient. Biological plausible pathways support the role of periodontal infections in the pathogenic mechanisms of diabetes mellitus. As it is already proved that the prevalence of diabetes is increasing on a large scale. Diabetes mellitus is a multi-factorial disease with significant variations which influence the development of...