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Tooth wear measurements using a reflex microscope.

L P Adams1, R J Wilding

  • 1Faculty of Engineering, University of Cape Town, Republic of South Africa.

Journal of Oral Rehabilitation
|November 1, 1988
PubMed
Summary
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A new reflex microscope accurately measures tooth wear in composite resins, crucial for dental restorations. This instrument offers reliable, objective comparisons of wear characteristics, aiding material evaluation.

Area of Science:

  • Dental Materials Science
  • Biomaterials Engineering
  • Restorative Dentistry

Background:

  • Wear resistance is critical for composite resins used in posterior dental restorations.
  • Accurate in vivo methods are needed to evaluate the wear of new dental materials.
  • Assessing tooth wear is essential for clinical trials of restorative materials.

Purpose of the Study:

  • To evaluate a novel stereometric measuring instrument for assessing tooth wear.
  • To determine the feasibility of using a reflex microscope for wear measurement.
  • To compare the accuracy of a reflex microscope against a gravimetric method for wear analysis.

Main Methods:

  • Experimental tooth wear was induced on a lead cast.
  • A reflex microscope was used to measure lost volume and average depth of wear.

Related Experiment Videos

  • A gravimetric method served as the control for wear measurement.

    • Main Results:

    • The reflex microscope demonstrated a mean difference of only 10 microns compared to the gravimetric method.
    • Measurements of volume and average depth lost were consistent between the two methods.
    • The stereometric instrument provided objective wear data.

    Conclusions:

    • The reflex microscope is well-suited for objective wear comparisons of composite resins.
    • This instrument offers a reliable method for assessing tooth wear in dental materials research.
    • The findings support the use of stereometric instruments in evaluating restorative material performance.