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Updated: Feb 11, 2026

Oral Biofilm Formation on Different Materials for Dental Implants
Published on: June 24, 2018
Comparative abrasive wear resistance and surface analysis of dental resin-based materials
Maleeha Nayyer1, Shahreen Zahid1, Syed Hammad Hassan1,2
1Department of Dental Materials, Army Medical College, National University of Medical Sciences, Rawalpindi, Pakistan.
Objective:
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.
Materials And Methods:
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.
Results:
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.
Conclusions:
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.
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