加热暴露对生物陶密封器微推出键强度的影响

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Guilherme Rodrigues Cândido Lopes¹, Maria Eduarda Paz Dotto¹, Lincon Hideo Nomura¹

¹Department of Dentistry, Endodontics Division, Health Sciences Center, Federal University of Santa Catarina, Florianopolis, Santa Catarina, Brazil.

International journal of dentistry

|November 9, 2023

概括

加热生物陶和以环氧树脂为基础的根管密封剂改善了AH Plus对牙的微推出键强度. 然而,加热并没有显著影响BioRoot RCS或Bio-C Sealer的结合强度.

科学领域:

牙周内科医院牙周内科医院牙周内科医院
牙科材料科学牙科材料科学
生物材料是一种生物材料.

背景情况:

根管密封剂对于内牙治疗的成功至关重要.
生物陶和以环氧树脂为基础的密封剂通常使用,每个都有不同的特性.
了解热量等因素如何影响密封器性能对于临床应用至关重要.

研究的目的:

为了研究加热对生物陶和环氧树脂基根通道密封剂对牙微推出键强度 (BS) 的影响.
为了比较加热与非加热密封器的粘合强度.

主要方法:

人类牙被切成1毫米的切片从部和中间根三分之一.
孔口被填充了Bio-C密封剂,BioRoot RCS,或AH Plus. 这些都是非常重要的.
一半的样本被加热到100°C1分钟;另一半作为对照.
使用通用测试机器评估了微推出键的强度.

主要成果:

与未加热样本相比,AH Plus在加热后的结合强度显著更高 (p=0.001).
加热并没有产生BioRoot RCS或Bio-C Sealer的结合强度的统计学上显著差异 (p > 0.05).
与加热的BioRoot RCS和Bio-C Sealer相比,加热的AH Plus表现出更高的结合强度 (p < 0.001).
凝聚性故障是主要的故障模式.

结论:

加热可以增强AH Plus对根牙的推出键强度.
热加热不会显著影响BioRoot RCS和Bio-C Sealer与根牙的结合强度.
这些发现表明,密封器类型对热修饰的反应不同.

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