A series of lectures intended to expose the student to the core concepts and current information necessary for a thorough and appropriate assessment and examination of the patient, their dental, pulpal, periradicular, periodontal, oral and peri-oral tissues in relation to the presenting complaints of the patient, arriving at an appropriate diagnosis of the condition from the information provided and examination and investigations undertaken. Topics include: physiology, microbiology and pathology of the pulp and periradicular tissues; odontogenic pain; local and systemic spread of infection; endodontic emergencies; traumatic injuries to the dentition; and the relationship between oral and systemic disease.