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Quantifying and qualifying surface changes on dental hard tissues in vitro.

J Field1, P Waterhouse, M German

  • 1School of Dental Sciences, Newcastle University, Framlington Place, Newcastle-upon-Tyne, Tyne and Wear NE2 4BW, United Kingdom. james.field@ncl.ac.uk

Journal of Dentistry
|January 19, 2010
PubMed
Summary

Tooth surface loss is a growing concern, prompting more in vitro studies. This review examines methods for measuring tooth surface changes, finding roughness average (Ra) insufficient and suggesting bearing area parameters for better assessment.

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Area of Science:

  • Dental research
  • Materials science
  • Biomaterials engineering

Background:

  • Tooth surface loss (TSL) is a recognized and increasing problem.
  • This has led to a rise in complex in vitro studies examining factors affecting tooth surfaces.

Purpose of the Study:

  • To provide a narrative review of common in vitro methods for measuring tooth surface loss and change.
  • To critically appraise historical and current techniques used in dental research.

Main Methods:

  • A comprehensive literature search was conducted using Scopus (1975-2009) with keywords related to dental, erosion, abrasion, surface change, and in vitro.
  • Sixty-nine relevant papers were reviewed, and their methodologies critically appraised.
  • Bibliographic references from these papers were used to identify additional relevant sources.

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Main Results:

  • Tooth surface change is a complex phenomenon measurable by various techniques.
  • No single in vitro method offers a complete assessment of tooth surface changes, and all techniques have limitations.
  • Current reporting methods provide limited insight into the immediate future progression of surface changes.

Conclusions:

  • Despite available in vitro tests, roughness average (Ra) remains the primary metric in dental studies for surface changes.
  • It is proposed that incorporating bearing area parameters alongside Ra, using existing profilometric data, can provide a more comprehensive description of surface quality.