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Updated: Mar 1, 2026
Oral Biofilm Formation on Different Materials for Dental Implants
Published on: June 24, 2018
Surface Characteristics and Biofilm Development on Selected Dental Ceramic Materials
Kyoung H Kim1, Carolina Loch1, J Neil Waddell1
1Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand.
Background:
Intraoral adjustment and polishing of dental ceramics often affect their surface characteristics, promoting increased roughness and consequent biofilm growth. This study correlated surface roughness to biofilm development with four commercially available ceramic materials.
Methods:
Four ceramic materials (Vita Enamic®, Lava™ Ultimate, Vitablocs Mark II, and Wieland Reflex®) were prepared as per manufacturer instructions. Seventeen specimens of each material were adjusted and polished to simulate clinical intraoral procedures and another seventeen remained unaltered. Specimens were analysed by SEM imaging, confocal microscopy, and crystal violet assay.
Results:
SEM images showed more irregular surface topography in adjusted specimens than their respective controls. Surface roughness (R ) values were greater in all materials following adjustments. All adjusted materials with the exception of Vitablocs Mark II promoted significantly greater biofilm growth relative to controls.
Conclusion:
Simulated intraoral polishing methods resulted in greater surface roughness and increased biofilm accumulation.
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