Contrast Radiography is one of the most important adjunct procedures for imaging of the oral and maxillo-facial region. Inspite of newer investigation technique Contrast Radiography has remained as one of the most useful diagnostic tool.This book brings light on the role of various contrast agent used for radiological diagnosis of head and neck pathology .Due to limited literature regarding contrast radiography in various textbook this book will be helpful for those who are interested about various contrast radiographic agents and technique .This book has been compiled using various research articles done by prominent authors. In numerous section of the text we have attempted to integrate information about the Contrast Media and the coded with the references which will be helpful to those interested in additional information. I hope that this book also helpful to study in detail about the contrast media used in head and neck region as well as guide for undergraduate and postgraduate student and practitioners of both dentistry and medicine.