全瓷冠熔附纯钛小基台种植修复体的临床应用

目的采用全瓷冠熔附纯钛小基台的方法制作种植体支持的修复体，并进行临床修复效果评价。方法机械加工制作颈环及轴壁薄的纯钛小基台，计算机辅助制作（computer aided manufacture，CAM）与基台匹配的全瓷冠，通过烧结遮色瓷将全瓷冠熔附于小基台上，获得修复体。对5例患者的6颗缺失牙进行修复，并对修复体进行临床效果评价。结果成功制作全瓷冠熔附纯钛小基台修复体6个。经临床评价，修复体在表面、外形、边缘及色泽等方面在修复时和修复1年后均获得满意的效果。结论全瓷冠熔附纯钛小基台修复体可作为种植义齿美学修复的新选择。

Clinical application of implant-supported restoration with all-ceramic crown fused to small-size titanium abutment

OBJECTIVE: To get aesthetic implant-supported restorations by means of the all-ceramic crown fused to small-size titanium abutment and evaluate the quality of the restorations. METHODS: A small-size titanium abutment that had extremely thin circumferential collar and axial wall was fabricated, while a Cercon all-ceramic crown made with computer aided manufacture (CAM). The crown was fused to the abutment by firing the opaque porcelain. A total of 6 restorations in 5 patients were installed and assessed according to the California Dental Association (CDA) quality evaluation system. RESULTS: All the restorations were fabricated well and ranked in clinic evaluation excellent for surface, anatomical form, marginal quality, and color at baseline and one year after insertion, respectively. CONCLUSIONS: The restoration of all-ceramic crown fused to titanium small-size abutment is a new aesthetic alternative for the implant-supported restoration.