Your one-stop review for the National Board Dental Hygiene Examination (NBDHE), Mosby's Comprehensive Review of Dental Hygiene, 7th Edition is the most trusted review and study tool on the market. A total of 2,500 review questions and four online timed practice exams -- all with answers and rationales for remediation -- make this book stand out as a student favorite. Already known for its in-depth coverage, an easy-to-use outline format, and expert authorship, this review parallels the NBDHE with a unique "testlet" format for community health and research content, an emphasis on computer-based testing, and coverage of dynamic areas such as infection control and local anesthesia administration. Expert author Michele Darby provides the NBDHE review tool you cannot afford to be without!