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

机译:四种牙科纤维柱的弯曲强度和弹性模量

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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锥形勒克斯,Tenax纤维白色,Luxa邮政和重新利用的柔性优势。用SEM分析破裂模式。结果发现,Parapost Taper Lux(591.47±35.15MPa)和重生柱(614.67±58.36MPa)在弯曲强度(P> 0.05)之间没有显着差异(P> 0.05),并且Tenax纤维白色(846.62±71.15MPa)显着更高比其他群体的弯曲强度。 Tenax纤维白色(23.93 + 2.14GPA)和Luxa Post(22.67±1.39GPa)之间没有显着差异(P> 0.05),并且Tenax纤维白色和Luxa Post的弹性模量明显低于其他组。可以通过横血晶透过SEM观察,即纤维和树脂的结合均匀,并且紧凑且大量的树脂片段粘附到Tenax纤维白组中纤维表面,通过纵向SEM观察多裂缝裂缝。四种牙科纤维柱的弯曲性能和破裂模式显着不同。

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