* Subject matter more simplified than before and more text boxes, flow charts and tables added for ease of understanding * Linking of text matter to supplement Atlas for understanding the microscopic appearances * Color photographs of oral cavity for clinical correlation with microscopic appearances * Audio video presentation of oral histology slides to relate theoretical concepts to microscopic appearances * Chapter on Histochemistry simplified to meet undergraduate requirements * Detailed references and unabridged version of text on Histochemistry is added to online resource * Multiple choice questions in two levels of difficulty for self appraisal