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Related Experiment Videos

Interoperator variability during polishing.

Colin S Jones1, Richard W Billington, Gavin J Pearson

  • 1Queen Mary University of London, England. cjonesstheaker@ntlworld.com

Quintessence International (Berlin, Germany : 1985)
|March 16, 2006
PubMed
Summary
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Practitioners showed significant variation in finishing and polishing loads, speeds, and times for dental materials. No optimal combination was found, suggesting arbitrary techniques in clinical practice.

Area of Science:

  • Dental Materials Science
  • Clinical Dentistry

Background:

  • Finishing and polishing are crucial steps in dental restorations.
  • Standardized parameters for these procedures are lacking.

Purpose of the Study:

  • To measure the range of loads, speeds, and times used in finishing and polishing.
  • To identify clinically relevant values for optimizing techniques.

Main Methods:

  • Dental materials (amalgam, resin composite, glass-ionomer cement) were polished using a universal testing machine.
  • Practitioners applied varying loads, speeds, and times with different polishing disk grades.

Main Results:

  • Wide variations observed in loads, speeds, and times across practitioners and materials.

Related Experiment Videos

  • No consistent relationship found among the three variables.
  • Finishing appeared to be performed arbitrarily.

    • Conclusions:

    • Optimal combinations of load, speed, and time for finishing dental materials could not be determined.
    • The study provides a range of commonly used clinical values for manufacturers' guidance.