Nayyer Maleeha, Zahid Shahreen, Hassan Syed Hammad, Mian Salman Aziz, Mehmood Sana, Khan Haroon Ahmed, Kaleem Muhammad, Zafar Muhammad Sohail, Khan Abdul Samad
Department of Dental Materials, Army Medical College, National University of Medical Sciences, Rawalpindi, Pakistan.
Department of Prosthodontics, Armed Forces Institute of Dentistry, National University of Medical Sciences, Rawalpindi, Pakistan.
Eur J Dent. 2018 Jan-Mar;12(1):57-66. doi: 10.4103/ejd.ejd_380_17.
The objective of this study was to assess the surface properties (microhardness and wear resistance) of various composites and compomer materials. In addition, the methodologies used for assessing wear resistance were compared.
This study was conducted using restorative material (Filtek Z250, Filtek Z350, QuiXfil, SureFil SDR, and Dyract XP) to assess wear resistance. A custom-made toothbrush simulator was employed for wear testing. Before and after wear resistance, structural, surface, and physical properties were assessed using various techniques.
Structural changes and mass loss were observed after treatment, whereas no significant difference in terms of microhardness was observed. The correlation between atomic force microscopy (AFM) and profilometer and between wear resistance and filler volume was highly significant. The correlation between wear resistance and microhardness were insignificant.
The AFM presented higher precision compared to optical profilometers at a nanoscale level, but both methods can be used in tandem for a more detailed and precise roughness analysis.
本研究的目的是评估各种复合材料和复合体材料的表面性能（显微硬度和耐磨性）。此外，还比较了用于评估耐磨性的方法。
本研究使用修复材料（Filtek Z250、Filtek Z350、QuiXfil、SureFil SDR和Dyract XP）来评估耐磨性。使用定制的牙刷模拟器进行磨损测试。在耐磨性测试前后，使用各种技术评估结构、表面和物理性能。
处理后观察到结构变化和质量损失，而在显微硬度方面未观察到显著差异。原子力显微镜（AFM）与轮廓仪之间以及耐磨性与填料体积之间的相关性非常显著。耐磨性与显微硬度之间的相关性不显著。
在纳米尺度上，AFM比光学轮廓仪具有更高的精度，但两种方法可以串联使用，以进行更详细和精确的粗糙度分析。
