【研究背景】重度牙周病导致牙齿周围支持组织丧失,缺牙后牙周组织美学效果欠佳:龈缘曲线不协调、牙龈乳头消失,需要临时修复体进行诱导、塑性。拔牙后即刻种植,不能阻止拔牙位点牙槽骨的生理性改建,种植体周围的支持组织处于生理改建过程中,尚不稳定,需要临时修复体进行过渡、维持。 Background: Severe periodontal disease leads to the loss of supporting tissues around the teeth. The periodontal tissue after tooth loss has poor esthetic effect. The gingival margin curves are not coordinated and the gingival papilla disappears. Temporary prostheses need to be induced and plasticized. Implants immediately after planting, can not stop the extraction of alveolar bone at the physiological modification, the supporting tissue around the implant in the process of physiological remodeling, is not stable, the need for temporary restoration of the body to maintain and maintain.