评估三种当代散装填充树脂复合材料的压缩和曲性能
Norma Borja-Farfán1, Danilo Loyola-Livias1, Leslie Casas-Apayco2
1Universidad Peruana de Ciencias Aplicadas, Carrera de Odontología, Lima, Perú.
Acta odontologica latinoamericana : AOL
|February 26, 2026
概括
与传统材料相比,散装填充树脂复合材料具有优越的压力和强度,为牙科修复提供了有希望的替代品. 它们的临床应用取决于患者的具体需求和处理特征.
科学领域:
- 牙科材料科学 牙科材料科学
- 生物材料工程 生物材料工程
- 聚合物化学 聚合物化学
背景情况:
- 牙修复材料必须承受力而不会永久变形.
- 评估新材料的机械性能对于临床成功至关重要.
研究的目的:
- 为了比较三种散装填充树脂复合材料与常规复合材料的压力和屈曲强度.
- 评估OpusTM散装填充 (OBF),Tetric® N-Ceram散装填充 (TNC) 和FiltekTM散装填充 (FBF) 的机械性能.
主要方法:
- 使用一台Instron®通用测试机器对四种树脂复合材料 (三种散装,一种常规) 进行机械测试.
- 准备每种材料的14个圆柱形和19个矩形样本,分别用于压力和屈曲强度测试.
- 在100 kN负载能力下以1 mm/min的速度进行测试.
主要成果:
- 菲尔特克TM散装填充 (FBF) 显示了显著更高的压力强度 (235.59 MPa ± 26.08) 和屈曲强度 (200.53 MPa ± 10.32).
- 所有测试的散装填充树脂复合材料都显示出比传统的FiltekTM Z350XT (FZXT) 更大的压力和屈曲强度.
- 在两个机械试验中,在树脂复合材料之间观察到统计学上显著的差异 (p<0.001).
结论:
- 与传统的树脂复合材料相比,散装树脂复合材料具有更高的机械强度.
- 这些材料的临床选择应考虑特定的处理要求和处理特性.
- 进一步的研究可能会探索长期的临床性能和耐磨性.
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