European Journal of Prosthodontics and Restorative Dentistry

Evaluation of Various Polishing Systems for Lithium Disilicate Glass-Ceramics


Objective: The aim of this study was to investigate the surface roughness of lithium disilicates (LS2s) polished using various polishing systems. Materials and Methods: Two types of LS2 (A, Amber Mill and E, IPS e.max CAD) were polished using LS2-specific polishing systems (L-Edenta, L-Jota), a zirconia-specific polishing system (Z-Jota), and a conventional ceramic polishing system (P-Shofu) (n = 8 per group). The compositions of different polishing systems were analyzed using EDS. Surface roughness was measured using confocal laser scanning microscopy and analyzed using EDS and SEM. ANOVA and
Tukey’s tests were used for the statistical analyses (p = 0.05). Results: The polishing systems were mainly composed of C, O, and Si. The L-Jota group exhibited rougher surfaces than the other groups. Amber Mill exhibited higher surface roughness than IPS e.max CAD (p<0.001). Among the polishing systems, the L-Jota group presented the highest roughness value (p<0.001). The surface roughness of the AL-Jota group was higher than that of the other groups. Conclusions: A sufficiently smooth surface can be achieved without a LS2-specific polishing system. Further, the same polishing system can have different effects depending on the type of LS2.
Surface Roughness
Lithium Disilicate
Confocal Microscope
Polishing Systems
Element Compositions


Ye-Jin Lee, Yoon-Hyuk Huh, Kyung-Ho Ko, Chan-Jin Park, Lee-Ra Cho

Articles from this issue

Title / DOI Access Page Start Page End Purchase
Comparison of Stud Retentor Versus Bar-Clip Attachment as ImplantSupported Systems Used in Overdentures: A Systematic Review and Meta-Analysis
no access 169 187 £10.00
Evaluation of Various Polishing Systems for Lithium Disilicate Glass-Ceramics
no access 188 199 £10.00
The Influence of a Flexible Model on the Marginal Adaptation of Inlay Composite Restorations: A MicroCT Analysis
no access 200 206 £10.00
Evaluating the Bond Strength of a Polymer Infiltrated Ceramic Network to Zirconia Using the Crossbeam Push-Off Method
no access 207 213 £10.00
Strain Gauge Analysis of the Stresses Induced by Different Secondary Coping Materials in Tooth Supported Telescopic Overdentures
no access 214 222 £10.00
Comparison of Dentin Caries Remineralization with Four Bioactive Cements
no access 223 229 £10.00
Effect of Translucency and Curing Mode of Four CAD/CAM Materials on Polymerization Efficiency of Light and Dual Cure Resin Cements
no access 230 238 £10.00
Evaluation of the Efficacy of Two Fibre-Reinforced Post Removal Techniques
no access 239 244 £10.00
  • free access Free Access
  • no access No Access
  • full access Full Access