...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Dental Materials Journal >Five-axis laser milling system that realizes more accurate zirconia CAD/CAM crowns by direct milling from fully sintered blocks
【24h】

Five-axis laser milling system that realizes more accurate zirconia CAD/CAM crowns by direct milling from fully sintered blocks

机译：五轴激光铣削系统，通过从完全烧结的块直接铣削，可实现更精确的氧化锆CAD / CAM冠

获取原文
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Directly milling zirconia computer-aided design (CAD)/computer-aided manufacturing (CAM) crowns from fully sintered zirconia blocks using a five-axis laser milling system, compared with three-axis milling and full sintering by heating milled semi-sintered crowns, was investigated. The mechanical characteristics of zirconia specimens were similar across groups. The order of the marginal gap was three-axis>conventional (lingual thickness of 1.5 mm>0.5 mm)>five-axis group (close to zero). The marginal shape was almost perfectly circular in all groups. The internal corner shape and gap were almost perfect for the five-axis milled crown but not for conventional and three-axis crowns. The roundness of the marginal and internal shapes was almost perfect in the five-axis milling group but not for the three-axis and conventional groups. These small distortions result in large marginal gaps. Results of the present study suggest the superiority of the five-axis milling system in creating a zirconia prosthesis.
机译：使用五轴激光铣削系统从完全烧结的氧化锆块直接铣削氧化锆计算机辅助设计（CAD）/计算机辅助制造（CAM）冠，与三轴铣削和通过加热铣削的半烧结冠进行的完全烧结相比，被调查了。各组氧化锆样品的机械特性相似。边缘间隙的顺序为三轴>常规（舌厚度1.5mm> 0.5mm）>五轴组（接近零）。所有组的边缘形状几乎都是完美的圆形。内角的形状和间隙几乎适用于五轴铣削的胎冠，但不适用于常规和三轴胎冠。在五轴铣削组中，边缘和内部形状的圆度几乎是完美的，但对于三轴铣削组和常规组则不是。这些小的变形导致较大的边际间隙。本研究结果表明，五轴铣削系统在制造氧化锆假体方面具有优势。

著录项

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