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Practitioner variability effects on dentin bonding with an acetone-based one-bottle adhesive
1Department of Preclinical Dentistry, Dental School, University of Cologne, Cologne, Germany.
The Journal of Adhesive Dentistry
|December 1, 2001
Summary
Operator variability significantly impacts resin composite restoration margins. Following instructions meticulously improves bonding performance, reducing marginal gaps in dental preparations.
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:
- 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.