评估不同类型的散装复合材料的聚合收缩,微硬度和固化的深度
Sergen Özdemir1, İlker Ayaz2, Nurgül Çetin Tuncer1
1Department of Restorative Dentistry, Faculty of Dentistry, Akdeniz University, Antalya, Turkey.
概括
高照射率增加了SonicFill 2 (SCF) 大量填充复合材料的收缩和空隙. 巨大的SO重流 (GHF) 和填充! (FUP) 没有达到目标的4mm深度.
科学领域:
- 牙科材料科学 牙科材料科学
- 聚合物化学 聚合物化学
- 生物材料工程 生物材料工程
背景情况:
- 与传统复合材料相比,散装复合材料提供更快,更容易的放置.
- 了解聚合特性,如收缩,微硬度和治愈深度,对于临床成功至关重要.
- 材料组成和固化参数的变化可以显著影响这些特性.
研究的目的:
- 量化和比较六种不同的散装复合材料的聚合收缩,微硬度和固化深度.
- 评估标准与高辐射水平对这些特性的影响.
- 确定最佳的材料和固化策略,以实现可靠的复合材料修复.
主要方法:
- 六种散装填充复合材料 (SonicFill 2,ViscCalor,Admira Fusion x-tra,Filtek散装填充,填充!,GrandioSO重流) 进行了测试.
- 标本在标准或高辐射下治愈,并使用微计算机断层扫描分析收缩和空隙形成.
- 微硬度测试以0.5mm的间隔确定了固化的深度.
主要成果:
- 在标准照射量下,Admira Fusion x-tra (AFX) 呈现出最高的体积收缩和空隙比.
- 增加的辐射强度显著增加了SonicFill 2 (SCF) 的收缩和空隙 (p<0.05).
- 格兰迪奥SO重流 (GHF) 在最浅的深度 (2.9mm) 显示出最大的微硬度,而VisCalor (VVC),AFX和SCF在5mm以上的深度 (p<0.05) 显示出最大的微硬度.
结论:
- 高辐射加剧了SCF体积收缩和空洞形成.
- 补油!补油!补油!补油!补油!补油! (FUP) 和GHF未能达到推的4mm深度的治愈.
- 材料类型,辐射率和恢复厚度是影响散装复合材料聚合和临床性能的关键因素.
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