An introduction to health and disease, followed by diseases of the digestive, respiratory, and urinary systems, hypertension, circulatory shock, diabetes mellitus, thyroid diseases, angina pectoris, anemia, metabolic diseases and their relationship to dentistry, and immunological diseases and their relationship to dentistry. Then comes dermatology, including an introduction to skin health, an introduction to the skin and mucous membranes, oral manifestations of systemic diseases, chickenpox, thrush, purpura, pustules, psoriasis, leishmaniasis, lymphocytic leukemia, skin cancer, syphilis, HIV/AIDS and its manifestations.