With the evolution and advancements in dental science, various new techniques and methods for the replacement of missing teeth have come into foray. Replacement of missing teeth with dental implants have now become the most sought-after treatment modality. Implant overdentures are increasingly used as a viable option to restore edentulous patients and mandibular overdenture has been advocated as a minimum standard of care for such patients, especially in developed nations. Compared with conventional removable dentures, the implant overdenture prostheses offers increased longevity, improved function, bone preservation, and better psychologic results. This book provides an overview on the various techniques and attachments that are available for implant supported overdentures.