Cercon CAD/CAM系统氧化锆全瓷冠桥2 238例的返工分析

Abstract

Abstract: Objective To explore the methods to prevent Cercon Zirconia crown and bridge rework. Methods The production of 2 238 cases cercon all-ceramic zirconia crowns and bridges in my hospital was reviewed. Reasons for rework were analyzed and summarized. Results 2238 cases of patients were observed from 18 months to 5 years to investigate the quality of crowns and bridges production. 98 cases were reworked in total with the rework rate of 4.37%, among which 29 cases were for inner crown fracture, 10 cases for single crown fracture, 39 cases for porcelain collapse, 10 cases for poor fitness and 10 cases for poor color match and poor morphology. Conclusions Zirconia restorations depend on common effort of every step:strictly following Principles of tooth preparation, a detailed clinical operations, meticulous laboratory production and selecting appropriate indications.

Key words: Zirconia, ceramic crown and bridge, rework

CLC Number:

R783.3

References

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Analysis of the rework of 2 238 cases of zirconia porcelain crown and bridge produced by Cercon CAD / CAM systems

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