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Remineralization of etched dentin
T Tatsumi1, S Inokoshi, T Yamada
1Department of Operative Dentistry, Tokyo Medical and Dental University, Faculty of Dentistry, Japan.
The Journal of Prosthetic Dentistry
|May 1, 1992
Summary
Dental composite restorations can promote dentin remineralization. This study shows that etched dentin, even when demineralized, fully remineralized after 4 months when restored with a chemically adhesive composite resin.
Area of Science:
- Dental Materials Science
- Biomaterials
- Cariology
Background:
- Dental caries involves dentin demineralization.
- Preserving the inner carious dentin layer is clinically relevant.
- Composite resins are widely used for dental restorations.
Purpose of the Study:
- To investigate the remineralization potential of dentin beneath composite restorations.
- To simulate a clinical scenario with preserved carious dentin.
Main Methods:
- Class V cavities were prepared in monkey teeth.
- Artificial demineralization created a carious dentin layer.
- Cavities were restored with a chemically adhesive composite resin after phosphoric acid etching.
- Knoop hardness, calcium concentration, and SEM were used for analysis.
Main Results:
- Etched dentin showed complete remineralization after 4 months.
- Knoop hardness and calcium concentration increased significantly.
- SEM confirmed structural recovery of the dentin.
Conclusions:
- Chemically adhesive composite resins facilitate dentin remineralization.
- This restorative approach can help preserve tooth structure in carious lesions.
- Further research into long-term effects is warranted.