[Relationship between periodontitis and systemic diseases].

Periodontitis is a biofilm-induced inflammatory disease affecting the periodontium with a high and even increasing prevalence in the German population. During recent years, there is emerging evidence for systemic effects of a periodontal infection, in particular in relation to diabetes and atherosclerosis. There is a bi-directional relationship between periodontitis and diabetes. Diabetes promotes the occurrence, the progression, and the severity of periodontitis. The periodontal infection complicates the glycemic control in diabetes, increases the risk of diabetes-associated complications and possibly even of its onset. As a consequence, the treatment of periodontal infections should become an integral part of the management of diabetes, whereas glycemic control is a prerequisite for successful periodontal therapy. Periodontal infections are considered as independent risk factor for atherosclerosis and their clinical sequelae, e.g., cerebro- and cardiovascular diseases. The positive association is only moderate, however remarkably consistent. Periodontal therapy can result in positive effects on subclinical markers of atherosclerosis.