This document discusses the influence of various systemic conditions on the periodontium. It covers endocrine disorders like diabetes mellitus and how it can cause oral manifestations such as gingival enlargement and rapid bone loss. It also discusses the effects of female sex hormones during puberty, pregnancy, menopause and use of hormonal contraceptives. Other conditions covered include hematological disorders, genetic disorders like Down syndrome, stress, medications like bisphosphonates, and corticosteroids. It concludes with some multiple choice questions to test understanding.