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Polishing systems for dental ceramics

A K Hulterström1, M Bergman

  • 1Department of Dental Materials and Technology, Faculty of Odontology, University of Umeå, Sweden.

Acta Odontologica Scandinavica
|August 1, 1993
PubMed
Summary

Achieving a smooth surface finish on dental ceramics after grinding is challenging. The SofLex system and Shofu Porcelain Laminate Polishing Kit offer clinically acceptable results for various ceramic materials.

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Area of Science:

  • Dental Materials Science
  • Biomaterials Engineering

Background:

  • Restorative dentistry increasingly utilizes ceramic materials for posterior crowns and inlays.
  • Achieving optimal surface finish after corrective grinding of these restorations presents clinical challenges.

Purpose of the Study:

  • To compare the efficacy of different polishing systems and techniques for dental ceramics.
  • To evaluate the surface roughness and condition after polishing various ceramic materials.

Main Methods:

  • Initial screening of polishing systems using Vita Mark I dental ceramic.
  • Evaluation of surface roughness using a surface roughness analyzer.
  • Comparative analysis of the two best-performing systems (SofLex and Shofu Porcelain Laminate Polishing Kit) on multiple dental ceramics, including newer types.

Main Results:

  • The SofLex system and Shofu Porcelain Laminate Polishing Kit demonstrated superior performance in initial tests.
  • Both systems provided a satisfactory surface finish within clinically acceptable times for all tested ceramics.
  • Diamond polishing paste did not enhance SofLex smoothness but yielded variable results with the Shofu system.

Conclusions:

  • The SofLex and Shofu Porcelain Laminate Polishing Kit are effective for achieving smooth surfaces on a range of dental ceramics.
  • These systems offer clinically viable solutions for post-grinding finishing of ceramic restorations.

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