Abstract
In our continually aging society, dental care professionals now have the option of using implants in addition to conventional defect prosthodontics to repair defects, and we can now better respond to a variety of defects. However, there are growing demands from patients for not only the recovery of oral function, but also strong urgings for the therapy to focus on prosthodontic morphology, esthetics, a shortening of the duration of the therapy, and convenience, among others.