This book titled, Textbook of Oral Medicine, has been written by keeping the needs of the undergraduate and postgraduate students in mind. Compared to the second edition, the third edition has been thoroughly rewritten and all the latest information has been provided so that the book is up-to-date in all respects. More clinical photographs have been added so that the students will be able to appreciate the clinical picture of the oral diseases. Newer and scientifically accepted classifications have been used in the book. At the same time, unnecessary details regarding various studies and researches are avoided for the ease of understanding the subject.