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Related Experiment Videos

Practitioner variability effects on dentin bonding with an acetone-based one-bottle adhesive.

W J Finger1, M Balkenhol

  • 1Department of Preclinical Dentistry, Dental School, University of Cologne, Cologne, Germany.

The Journal of Adhesive Dentistry
|December 1, 2001
PubMed
Summary

Operator variability significantly impacts resin composite restoration margins. Following instructions meticulously improves bonding performance, reducing marginal gaps in dental preparations.

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Area of Science:

  • Dentistry
  • Dental Materials Science

Background:

  • Dental restorations using resin composites are common.
  • One-bottle adhesives simplify procedures but may be technique-sensitive.

Purpose of the Study:

  • To assess how operator variability affects the marginal seal of resin composite restorations.
  • To evaluate the performance of an acetone-base one-bottle adhesive in standardized dentin preparations.

Main Methods:

  • Five general practitioners restored standardized dentin preparations in extracted teeth.
  • Group 1: Restorations with original instructions.
  • Group 2: Restorations after oral instruction emphasizing moist technique.
  • Group 3: Evaluated for training effect.

Main Results:

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  • Group 1 showed significant interoperator variation and inferior marginal performance (gaps 1-12 microns).
  • Groups 2 and 3 demonstrated significantly better marginal integrity, with most restorations being gap-free.
  • No significant difference was found between groups 2 and 3.

Conclusions:

  • The application of one-bottle adhesives is technique-sensitive.
  • Meticulous adherence to instructions is crucial for optimal marginal performance in dental restorations.