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Published on: December 20, 2024
Physicochemical Stability of Dentin-Derived Biomaterials During Long-Term Storage.
Robert Dłucik1, Alberto Scoglio2,3, Domenico Puzzolo2
1Dłucik Dental Clinic, 40-737 Katowice, Poland.
Journal of Functional Biomaterials
|June 25, 2026
Summary
Long-term refrigerated storage preserves the physicochemical integrity of dentin biomaterials. Processing methods, not storage time, significantly impact the final collagen-mineral composite structure for bone regeneration.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Dental Materials
Background:
- Dentin-derived biomaterials are promising scaffolds for bone regeneration due to their natural collagen-mineral composite structure.
- The impact of prolonged storage on the physicochemical integrity of extracted teeth for biomaterial processing is not well understood.
- Understanding dentin stability is crucial for developing reliable tooth banking strategies and ensuring biomaterial quality.
Purpose of the Study:
- To evaluate the physicochemical stability of dentin-derived biomaterials after long-term refrigerated storage (up to six years).
- To compare the effects of different processing methods on dentin biomaterial integrity.
- To determine if dentin's hierarchical structure degrades over time during storage.
Main Methods:
- Extraction and long-term refrigerated storage (up to six years) of human teeth.
- Processing of stored teeth into biomaterials using three distinct preparation systems: BonMaker, Tooth Transformer, and Smart Dentin Grinder.
- Analysis of mineral and collagen structure using Raman spectroscopy to derive key physicochemical indices.
Main Results:
- Raman spectroscopy revealed no time-dependent degradation in mineral crystallinity, carbonate substitution, or collagen parameters after up to six years of storage.
- Differences in Raman profiles were primarily attributed to the processing methods, not storage duration.
- The Tooth Transformer and Smart Dentin Grinder methods yielded biomaterials with Raman profiles closely resembling native dentin, unlike the BonMaker method which showed altered mineral content.
Conclusions:
- Dentin functions as a structurally stable hierarchical composite, resistant to physicochemical degradation during prolonged refrigerated storage.
- Long-term storage does not compromise the integrity of dentin for use as a biomaterial.
- These findings support the reliable use of stored dentin for regenerative applications and advocate for tooth banking initiatives.
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