Orthodontics is a specialty of dentistry that deals with the prevention and correction of irregularities of the teeth. It involves the straightening of crooked teeth, treatment of malocclusion and correction of poor bite. It also deals with the treatment of dental displacement and the control as well as modification of facial growth. Orthodontics primarily uses fixed appliances for the treatment. The fixed appliance consists of biomaterials that help in moving the teeth in dimensions and is considered significantly greater than the removable appliances. Before treatment, it is important to define the nature of the problem, recognize the various characteristics of a malocclusion, design a treatment strategy and present the treatment strategy to the patient. However, it is important to consider aspects like aesthetics, oral health, stability and function while planning treatment for patients. This book contains some path-breaking studies in the field of orthodontics. It strives to provide a fair idea about this discipline and to help develop a better understanding of the latest advances within this field. This book will serve as a reference to a broad spectrum of readers.