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Influence of explorer tip diameter in identifying restoration margin discrepancies
M Hayashi1, N H F Wilson, S Ebisu
1Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan. mikarin@dent.osaka-u.ac.jp
Journal of Dentistry
|September 6, 2005
Summary
Dental explorer tip diameter significantly impacts detecting horizontal gaps in restoration margins, but not vertical steps. This suggests alternative methods may improve clinical trial assessments of marginal adaptation.
Area of Science:
- Dental materials science
- Clinical dentistry
- Restorative dentistry
Background:
- Clinical trial evaluations of restoration marginal adaptation often depend on subjective assessments.
- Objective methods are needed to improve the reliability of these assessments.
Purpose of the Study:
- To evaluate the effectiveness of dental explorers with varying tip diameters in detecting simulated marginal discrepancies.
- To determine if explorer tip diameter influences the detection of different types of marginal defects.
Main Methods:
- Simulated vertical steps, horizontal gaps, and combined discrepancies were created.
- Five dental explorers with different tip diameters were used by 10 experienced dental faculty.
- Evaluators identified discrepancies based on modified US Public Health Service criteria (Alfa/Bravo ratings).
Main Results:
- A significant correlation was observed between explorer tip diameter and the detection of horizontal gaps.
- No significant correlation was found between explorer tip diameter and the detection of vertical steps.
Conclusions:
- Dental explorer tip diameter significantly affects the detection of horizontal gaps but not vertical steps.
- Current probing techniques may not be optimal for diagnosing restoration marginal discrepancies in clinical trials.
- Alternative diagnostic methods could enhance the assessment of marginal adaptation in clinical studies.
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