Text, illustrations, and exercises are utilized in this set of five learning modules to instruct dental patients and the general public in the fundamental principles of dental hygiene. The first module, "Identify the Responsibilities for Your Oral Health" by Floyd R. Tanner, discusses the respective roles of the dentist and the patient in maintaining oral health. The second module, "Preventing Dental Disease" by Marvin Mansky, details the causes of tooth decay and gum disease and discusses their prevention. The third module, "A Guide to Better Dental Health" by Chris Leo, identifies the parts of the tooth and describes how diet in conjunction with plaque may cause dental disease. The fourth module, "What Is Plaque and How to Remove It" by Karen Harris, examines the composition of plaque and describes how to remove it with the use of a toothbrush and dental floss. The fifth module, "Oral Health during Orthodontic Treatment" by Vian A. Weller, illustrates how to clean the mouth when wearing braces. Each of the illustrated modules describes techniques and procedures, provides sequential reinforcement exercises, and concludes with a post-test and answer key. The modules are designed to be completed in a specified length of time ranging from 15 to 30 minutes. (JP)