DES 1020 - Orofacial Anatomy DES 1020 - Orofacial Anatomy 2 cr. hrs. This course is a detailed study of the gross anatomy of the head and neck and the external and internal morphology of the primary and permanent dentition. Emphasis is placed on structures directly affected by the practice of dentistry. Head and neck anatomy lecture topics include anatomic terminology, anatomic landmarks, study of skeletal, muscular, nervous, respiratory, cardiovascular, lymphatic, endocrine, exocrine systems, facial spaces, and the spread of dental infections. Dental anatomy lecture topics include anatomy of the oral cavity, dental terminology, external and internal tooth anatomy, tooth nomenclature and numbering systems, individual tooth and root morphology, tooth eruption schedules, occlusion, and operative dentistry. You will use anatomical models of the head, neck, oral cavity, teeth, and extracted teeth to apply didactic information in a lab setting and apply knowledge of head, neck, and dental anatomy to clinical dental hygiene. Course Designations: (OA)