DEA 0025 - Preclinical Orientation I DEA 0025 - Preclinical Orientation I 40 con. hrs. Occupational This course introduces you to the practice of dental assisting. Topics covered in detail are the history of dental assisting, professional dental assistant, and the role of the dental healthcare team. Communicating in the dental office, establishing patient rapport, and working with different patient groups will also be covered. Content on fixed and removable appliances, implants, oral rehabilitation, and oral piercings will be covered. Course Designations: (CH)