Abstract
The requirements for long-term performance of dental-implant-supported prostheses in the esthetic area have been summarized and organized. At present, the thicknesses of labial balcony and gingival are receiving attention as influential factors, and both need to be well maintained for thickness and volume.
In contrast, the factors of diagnosis and clinical approaches that are being responded to in each clinical case are not well organized. The purpose of this paper is to indicate the approaches to diagnosing the implant positions, using computer tomography (CT), and to reconstructing and maintaining the tissues based on long-term surveillance results.
