The Masticatory System ,a functional unit of the body, is primarily responsible for chewing, speaking, and swallowing and also its components play a role in breathing and tasting. Pain related to temporomandibular disorders (TMD) is a common problem in modern societies. This book covers the signs and symptoms and as well as the various methods which are used for diagnosis of the TMD. In this book we have also discussed about various techniques applied for treating a patient suffering from temporomandibular disorders.