Oral diseases are the most prevalent chronic diseases worldwide, and a burden to health¿care services. It has taken over a century for dentistry to advance from the pioneering ¿extension for prevention¿ concept to a newer concept ¿minimum intervention¿. The main types of enamel demineralization include ¿incipient lesions¿ and ¿surface-softened defect¿ which are the other names used to describe white spot lesions. This book describes in detail the etiology, diagnosis, and the various methods of its management.