• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Operative dentistry >Regional bond strengths and failure analysis of fiber posts bonded to root canal dentin.
【24h】

Regional bond strengths and failure analysis of fiber posts bonded to root canal dentin.

机译：粘结到根管牙本质的纤维桩的区域粘结强度和破坏分析。

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

This study evaluated the regional bond strengths of fiber posts to root canal dentin luted with dual-cure resin composite. Twelve extracted human premolars were decoronated and post spaces prepared to a depth of 8 mm. The root canal dentin was treated with Clearfil SE Bond and light-cured for 20 seconds. Three posts from each of the following four types of fiber posts-Snowlight, FibreKor, DT Light-Post and GC Fiber Post-were surface-treated with a mixture of Porcelain Bond Activator and Photobond, then luted into the post spaces with Clearfil DC Core Automix and light-cured for 60 seconds. After 24-hour water storage, each specimen was serially sliced into eight 0.6 x 0.6 mm-thick beams for the microtensile bond strength (microTBS) test. Failure modes were observed using SEM. The microTBS data were divided into coronal and apical regions and statistically analyzed. The highest bond strengths were obtained from FibreKor posts. Regional factors had no effect on bond strength. FibreKor and DT Light-Post specimens primarily failed at the post-resin composite interface, whereas Snowlight and GC Post cohesively failed within the post.
机译：这项研究评估了纤维桩对用双固化树脂复合材料浸润的根管牙本质的区域结合强度。装饰十二个提取的人类前磨牙，并准备8 mm深度的柱子空间。用Clearfil SE Bond处理根管牙本质，并光固化20秒。将以下四种类型的光纤柱（Snowlight，FibreKor，DT Light柱和GC光纤柱）中的三个柱分别用瓷键活化剂和光键合的混合物进行表面处理，然后用Clearfil DC Core浸入到柱空间中自动混合并光固化60秒。储水24小时后，将每个样品依次切成8个0.6 x 0.6 mm厚的梁，用于微拉伸粘合强度（microTBS）测试。使用SEM观察失败模式。将microTBS数据分为冠状和顶端区域并进行统计分析。从FibreKor柱获得最高的粘结强度。区域因素对粘结强度没有影响。 FibreKor和DT Light-Post样品主要在树脂后复合材料界面失效，而Snowlight和GC Post在内聚性内聚失败。

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