An absolute anchorage was a traditional need of orthodontist for more than a century. Invention of temporary anchorage devices has made it possible in complex and critical cases of anchorage management. There are many pioneers who have diagnosed, designed and implemented the said technology in the clinical practices; Dr. Junji Sugawara from Japan is one of them, he started his work in 1992 and has worked for almost two decades in this field. This book is mainly about the development of Skeletal Anchorage System (SAS). The SAS is a recently developed orthodontic anchorage modality utilizing...