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黄金与CAD/CAM陶部分皇冠:为期20年的随机临床研究
Fabian Cieplik1, Julia L Pfister2, Karl-Anton Hiller2
1Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, Regensburg, Germany; Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
概括
这项为期20年的研究发现,陶部分皇冠 (PCC) 与黄金皇冠 (CGPC) 的生存率相似. 虽然这两项恢复均表现可接受,但CGPC在特定标准上显示出轻微的优势.
科学领域:
- 牙科材料科学 牙科材料科学
- 恢复性牙科 恢复性牙科
- 临床假牙科 临床假牙科
背景情况:
- 计算机辅助设计/计算机辅助制造 (CAD/CAM) 部分陶冠 (PCC) 广泛使用.
- 长期临床数据比较PCC与传统金部分冠冕 (CGPC) 是有限的.
- 20年的随访对评估牙科修复的寿命和性能至关重要.
研究的目的:
- 为了比较CAD/CAM PCCs与CGPCs在20年的累积存活率和临床性能.
- 为了测试CGPC和PCC长期表现出类似的结果的假设.
- 提供关于这些部分皇冠类型的20年服务期的系统临床数据.
主要方法:
- 一项前性,随机化,分口研究,涉及29名患者.
- 每个患者都接受了一个CGPC和一个PCC.
- 20年后的检查使用了修改后的USPHS和FDI标准,使用Kaplan-Meier生存分析.
主要成果:
- 累积生存率为CGPC的69%和PCC的53%,没有统计学意义.
- 所有评估的恢复都符合可接受的临床标准 (USPHS:Alpha/Bravo;FDI:1-3).
- 这两种皇冠类型表现出表面光泽和边际变色的恶化;PCCs随着时间的推移有较差的边际适应.
结论:
- 两种PCC和CGPC在20年后都显示出可接受的临床结果.
- 在某些特定标准上,CGPCs在表面染色和边际适应等方面表现出轻微的优势.
- PCCs提供与CGPCs相似的长期存活率,性能仅略差,支持其临床建议.
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