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Organic Eluates Derived from Intermediate Restorative Dental Materials
Triantafyllia Vouzara1, Konstantina Roussou1,2, Alexandros K Nikolaidis1
1Division of Dental Tissues' Pathology and Therapeutics (Basic Dental Sciences, Endodontology and Operative Dentistry), School of Dentistry, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece.
New dental base materials release organic compounds, potentially causing toxicity. Glass ionomer bases showed no eluates and better surface integrity, indicating safer intermediate restorative options.
Area of Science:
- Dental Materials Science
- Biomaterials Analysis
- Surface Chemistry
Background:
- Intermediate restorative materials are crucial in dentistry.
- New resin-based bases are increasingly available.
- Understanding their chemical and physical properties is essential for safety and efficacy.
Purpose of the Study:
- To identify organic eluates from new resin-based dental materials.
- To analyze the surface microstructure and elemental composition of these materials.
- To compare resin-based materials with glass ionomer bases.
Main Methods:
- Gas chromatography-mass spectrometry (GC-MS) for analyzing methanolic leachates.
- Scanning electron microscopy (SEM) for surface microstructure evaluation.
- Analysis of four dental materials: ACTIVA™BioACTIVE-BASE/LINER™, Ketac™Bond, SDR™, and Vitrebond™.
Main Results:
- GC-MS detected twenty organic substances from three resin-based materials; no eluates were found from glass ionomers.
- SEM revealed surface irregularities like pits (Vitrebond™) and cracks (Ketac™Bond), but not in ACTIVA™ or SDR™.
- Resin matrices may affect surface elemental accumulation; detected eluents suggest potential toxicity.
Conclusions:
- Resin-based dental materials can release potentially toxic organic compounds.
- Glass ionomer bases appear safer due to the absence of eluates and varied surface integrity.
- Further investigation into the biocompatibility of resin-based eluates is warranted.
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