This well-illustrated book is an up-to-date guide to orthodontic diagnosis, treatment planning, and treatment delivery in patients with obstructive sleep apnea (OSA). The aim is to present the latest knowledge on the important contribution that orthodontic modalities can now make in the management of a disorder that has generally been the preserve of sleep doctors. This book comprises three parts of general understanding of OSA and medical approaches, orthodontic diagnostic process, and orthodontic treatment application. In particular, the treatment parts are subdivided into six chapters depending on the patient's phenotype and age groups. The readers will come to realize how many modalities are available beyond the previously well-known options, and how important orthodontic contributions are for the treatment of OSA patients. The book will be an excellent resource providing well-organized diagnostic and therapeutic protocols from orthodontic point of view and willalso be of value to other practitioners with an interest in OSA.