The medical and dental sciences are undergoing enormous changes day by day. With diagnosis being the basis of the formulation of a treatment plan, Diagnostic Aids are at the forefront of this transformation. With newer diagnostic aids coming into picture, a medical and dental practitioner must incorporate new and enhanced concepts into the provision of efficient care for patients. This textbook gives an elaborate account of the science of Thermography and Thermal Imaging and the use of this novel technology as an indispensable diagnostic modality for the diagnosis of various pathological conditions in the fields of Medicine and Dentistry with special emphasis on the use of Thermography for the detection of Vertical Root Fractures in teeth. This text contains extensive knowledge pertaining to this evolving technology so that Postgraduates, Researchers, Engineers and Scientists alike may have this compilation at their disposal. This book focuses on the use of Active Thermography, which has proven to be a great adjunct to the conventional diagnostic aids for the detection of Vertical Root Fractures in teeth.