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Potential countersample materials for in vitro simulation wear testing.

Adrian C Shortall1, Xiao Q Hu, Peter M Marquis

  • 1School of Dentistry, The University of Birmingham, Birmingham B4 6NN, UK. a.c.c.shortall@bham.ac.uk

Dental Materials : Official Publication of the Academy of Dental Materials
|February 2, 2002
PubMed
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Dental porcelain closely mimics human enamel in wear resistance tests, offering a potential substitute for enamel in laboratory settings. This finding aids in developing more accurate in vitro wear testing for dental materials.

Area of Science:

  • Biomaterials science
  • Tribology
  • Dental materials research

Background:

  • Accurate in vitro wear testing of dental materials requires simulating oral conditions.
  • Countersample selection is crucial for tribological wear pattern and efficient in vitro testing.

Purpose of the Study:

  • Investigate wear behavior and surface characteristics of candidate countersample materials.
  • Identify a suitable substitute for human dental enamel in wear testing.

Main Methods:

  • Evaluated stainless steel, steatite, and dental porcelain against human enamel.
  • Assessed hardness, wear surface evolution, and frictional coefficients.
  • Considered tribological factors relevant to in vivo conditions.

Main Results:

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  • Dental porcelain exhibited the closest similarity to human enamel among the tested materials.
  • Stainless steel and steatite showed less similarity to enamel's wear characteristics.

Conclusions:

  • Dental porcelain demonstrates superior simulating ability for in vitro wear testing compared to stainless steel and steatite.
  • Further research with diverse dental ceramics is needed to optimize countersample selection for standardized testing.