• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >Fracture resistance of pressable ceramic fused to metal custom implant abutment: An esthetic alternative design.
【24h】

Fracture resistance of pressable ceramic fused to metal custom implant abutment: An esthetic alternative design.

机译：与金属定制种植体基台融合的可压陶瓷的耐断裂性：一种美观的替代设计。

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Objectives: The purpose of this study was to determine the feasibility of fabricating a pressable metal ceramic custom implant abutment (Pr) with a full porcelain coverage design, and to compare fracture resistance to its commercially available zirconia counterpart (Zr).;Methods: Two groups of implant abutment specimens were fabricated. The experimental group consisted of custom pressed-ceramic (Pr) abutment (n=10), and the control group consisted of CAD/CAM-designed zirconia-based ceramic (Zr) abutment (n=10). For the experimental group, a custom metal abutment was cast using a compatible metal alloy (Lodestar); this was followed by injection molding with leucite reinforced pressable ceramic (IPS InLine Press-over-Metal) around the metal column of the custom implant abutment. For the control group, a specimen was fabricated from CAD/CAM-designed zirconia abutment (Procera Zirconia). Following scanning, all-ceramic crowns with the average dimensions of a human central incisor were fabricated for the experimental and control abutments using lithium disilicate pressable ceramic (IPS e.max Press). Each crown was cemented to the implant abutments with a resin luting agent (Multilink Automix). Samples were subjected to Thermocycling (2000 cycles). Crown-abutment test specimens were fixed to titanium implant analogs and placed in a test stand at 30 degrees from the vertical axis of the specimens in a computer-controlled universal testing device for cyclic loading. After 500,000 cycles samples were statically loaded to failure for further analysis. The independent t test was used to detect if the mean fracture load values between the 2 groups differ significantly (alpha=.05).;Results: No samples failed during thermocycling or cyclic loading. The mean fracture load of the experimental group was 1695N (SD=253) during static loading. The control had a mean fracture load of 1277N (SD=242). The mean fracture load of the experimental group was significantly higher than that of the control group; p= 0.0015 (microPr>micro Zr).;Conclusions: Within the limitations of this in vitro study, it can be concluded that a fully veneered pressed ceramic fused to metal custom implant abutment can be fabricated and had a higher mean fracture resistance than its commercially available zirconia counterpart over a Nobel Biocare wide implant platform.
机译：目的：这项研究的目的是确定制造具有全瓷覆盖设计的可压制金属陶瓷定制植入物基台（Pr）的可行性，并将其抗断裂性与其市售的氧化锆对应物（Zr）进行比较;方法：两种组植入物基台标本。实验组由定制的加压陶瓷（Pr）基台（n = 10）组成，对照组由CAD / CAM设计的氧化锆基陶瓷（Zr）基台（n = 10）组成。对于实验组，使用兼容的金属合金（Lodestar）铸造定制的金属基台。然后在定制种植体基台的金属柱周围用白云石增强的可压制陶瓷（IPS InLine金属压制）注塑成型。对于对照组，用CAD / CAM设计的氧化锆基台（Procera Zirconia）制作了一个标本。扫描后，使用二硅酸锂可挤压陶瓷（IPS e.max Press）制造具有人中央门牙平均尺寸的全陶瓷冠，用于实验和对照基台。用树脂浸润剂（Multilink Automix）将每个牙冠粘合到种植体基台上。对样品进行热循环（2000次循环）。将牙冠基台测试样品固定到钛植入物类似物上，并放置在与样品的垂直轴成30度角的测试台中，并置于计算机控制的通用测试设备中进行循环加载。在500,000次循环后，将样品静态加载至失效状态以进行进一步分析。使用独立的t检验来检测两组之间的平均断裂载荷值是否存在显着差异（alpha = .05）。结果：在热循环或循环载荷过程中，没有样品失败。在静载荷下，实验组的平均断裂载荷为1695N（SD = 253）。对照组的平均骨折负荷为1277N（SD = 242）。实验组的平均骨折负荷明显高于对照组。 p = 0.0015（microPr> micro Zr）。；结论：在此体外研究的局限性内，可以得出结论，可以制造与金属定制种植体基台融合的全贴面压制陶瓷，其平均抗裂性高于其在Nobel Biocare宽植入物平台上可购买到的氧化锆对应物。

著录项

  • 作者

    Hernandez Terrazas, Carlos Alberto.;

  • 作者单位

    State University of New York at Buffalo.;

  • 授予单位 State University of New York at Buffalo.;
  • 学科 Health Sciences Dentistry.
  • 学位 M.S.
  • 年度 2013
  • 页码 68 p.
  • 总页数 68
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号