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Explorer sharpness as related to margin evaluations.

A P Rappold1, A H Ripps, E J Ireland

  • 1Louisiana State University, School of Dentistry.

Operative Dentistry
|January 1, 1992
PubMed
Summary
This summary is machine-generated.

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Sharper dental explorers improve detection of marginal gaps. Dull explorers hinder even experienced dentists in assessing restoration margins, impacting clinical decisions.

Area of Science:

  • Operative Dentistry
  • Dental Materials Science

Background:

  • Accurate assessment of dental restoration margins is crucial for clinical success.
  • Explorer sharpness is a key factor influencing tactile sensitivity in operative dentistry.

Purpose of the Study:

  • To investigate the correlation between dental explorer tip diameter (sharpness) and the ability to detect marginal discrepancies.
  • To evaluate the impact of explorer dullness on the assessment of visually inaccessible margins by experienced clinicians.

Main Methods:

  • Nine operative dentistry faculty evaluated marginal acceptability using six explorers with varying sharpness (new to well-used).
  • A device simulating vertical opening gradations was used for evaluation.
  • Explorer tip diameter was standardized at 68 microns (sharpest) measured 40 microns from the tip.

Related Experiment Videos

Main Results:

  • A positive correlation was found between explorer tip diameter at 40 microns and the detectable opening before margin declaration.
  • Increased explorer dullness significantly impaired the ability of experienced graders to evaluate inaccessible margins using explorers alone.

Conclusions:

  • Explorer sharpness is a critical, quantifiable variable in assessing dental restoration margins.
  • Dull explorers pose a significant challenge for accurate tactile evaluation, potentially affecting diagnostic capabilities in operative dentistry.