This book has been compiled and given the present shape after thorough selection and refinement of the latest available techniques and methods for the early diagnosis and subsequent detection of potential oral malignant lesions. By utilizing these given methods one can detect and diagnose early the oral cancer lesions and thus better select the patients for appropriate therapies. It will provide more individualized approach to treatment. Also, with an all-round awareness of these early diagnostic tests, one can easily formulate a treatment plan at the earliest significantly reducing the associated morbidity. This book provides an exhaustive data about the latest diagnostic methods, how better to use them and then get the desired results.