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Flexure Strength and Elastic Modulus of Four Types of Dental Fiber Posts

机译：四种类型的牙用纤维桩的弯曲强度和弹性模量

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摘要

The flexure strengths of ParaPost Taper Lux, Tenax Fiber White, Luxa Post and Rebilda Post fiber post were measured. The rupture modes were analyzed with SEM. It was found that there was no significant difference between ParaPost Taper Lux (591.47 ± 35.15MPa) and Rebilda Post (614.67 + 58.36MPa) in flexure strength (P > 0.05), and Tenax Fiber White (846.62 ±71.15MPa) had significantly higher flexure strength than the other groups. There was no significant difference between Tenax Fiber White (23.93 ± 2.14GPa) and Luxa Post (22.67 ± 1.39GPa) in elastic modulus (P>0.05), and Tenax Fiber White and Luxa Post had significantly lower elastic modulus than other groups. It could be observed by transverse SEM that the combine of fiber and resin was even and compact and plenty of resin fragment adhered to the surface of fiber in Tenax Fiber White group, multitudinous cracks were observed by lengthwise SEM. The flexural properties and rupture modes of four kinds of dental fiber posts were significantly different.
机译：测量了ParaPost Taper Lux，Tenax Fiber White，Luxa Post和Rebilda Post纤维桩的弯曲强度。用SEM分析破裂模式。发现ParaPost Taper Lux（591.47±35.15MPa）和Rebilda Post（614.67 + 58.36MPa）的挠曲强度（P> 0.05）没有显着差异，而Tenax Fiber White（846.62±71.15MPa）的挠曲强度明显更高。弯曲强度高于其他组。 Tenax Fiber White（23.93±2.14GPa）和Luxa Post（22.67±1.39GPa）的弹性模量之间没有显着差异（P> 0.05），并且Tenax Fiber White和Luxa Post的弹性模量明显低于其他组。横断面扫描电镜观察到，Tenax Fibre White组纤维与树脂的结合均匀，致密，大量树脂碎片附着在纤维表面，长轴扫描电镜观察到许多裂纹。四种牙用纤维桩的弯曲特性和断裂方式差异显着。

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  • 来源
  • 会议地点 Shenzhen(CN)
  • 作者

    Chen Hu; Longquan Shao; Linlin Wang; Shanyu Zhou; Jun Ai;

  • 作者单位

    Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China;

    Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China;

    Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China;

    Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China;

    Department of Stomatology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    fiber post; flexure strength; elastic modules;

    机译：纤维柱;抗弯强度;弹性模量;

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