Reorganized and updated to include new information and multiple new chapters on evidence-based practice, salivary dysfunction, basics of the immune system, HIV/AIDS, dental hygiene in orthodontics, and business management skills, Mosby's Dental Hygiene: Concepts, Cases, and Competencies, 2nd Edition continues to be a strong foundation for learning dental hygiene. Plus, it now includes new features such as an entirely revamped CD-ROM, the Insight Statement, special boxes covering patient education opportunities and important notes and more.