Now in full color, Mosby's Comprehensive Review of Dental Hygiene is an easy-to-use study aid for the national board exam. A full mock examination at the end of the book includes representative cases with answers and rationales for every question so readers can evaluate how well they've learned the material before they take the real exam. This edition includes two new chapters on General Anatomy and Physiology and General Pathology, to ensure that readers have a solid understanding of these sciences that are the foundation of oral anatomy and pathology. Additional information on ethical, legal, and safety issues is incorporated throughout to provide a better understanding of how these aspects of practice relate to each chapter topic. References have also been updated, putting the most current resources at the reader's fingertips for more relevant supplemental learning.