The paper proposes to examine the influence of mechanical and electrolytic finishing techniques on metal surface roughness.
Material and method: Six non-noble dental alloys and three versions of finishing have been taken into consideration: mechanical polishing with rubber polisher, mechanical polishing with cotton polisher and abrasive paste and electrolytic polishing. Examinations on roughness have made reference to Rz, Ra and Rq.
Results: The experimental results obtained have shown that mechanical polishing with rubber polisher is recommended for Co-Cr-Mo alloys, while mechanical polishing with cotton polisher and abrasive paste or electrolytic polishing are suited for Ni-Cr alloys.
Conclusion: Analysis of values obtained led to formulation of recommendations concerning the best polishing method for each non-noble alloy considered.