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Detection and Removal of Tooth-Colored Composite Resin Using the Fluorescence-Aided Identification Technique
Published on: July 27, 2022
Fluoride release and re-uptake in direct tooth colored restorative materials
J M Strother1, D H Kohn, J B Dennison
1Department of Cariology, Restorative Sciences and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, USA.
Summary
Topical fluoride treatments significantly increase fluoride uptake and release from glass ionomers without altering their strength or surface roughness. This suggests potential benefits for oral fluoride levels in clinical applications.
Area of Science:
- Dental Materials Science
- Biomaterials Engineering
- Fluoride Chemistry
Background:
- Glass ionomers are known for their fluoride-releasing properties.
- Topical fluoride treatments may enhance or alter glass ionomer performance.
- Understanding fluoride recharge and its effects is crucial for restorative dentistry.
Purpose of the Study:
- To compare fluoride release and re-uptake in different dental materials.
- To investigate the impact of fluoride treatments on glass ionomer properties.
- To assess changes in tensile strength and surface roughness after fluoride exposure.
Main Methods:
- Evaluated fluoride release and re-uptake over 30 days.
- Measured diametral tensile strength and surface roughness before and after treatments.
- Applied neutral 5000 ppm fluoride gel, a non-fluoride control, and phosphoric acid.
Main Results:
- Significant differences in fluoride release and re-uptake rates were observed among materials.
- Fluoride re-release after neutral gel treatment differed from acid treatment in glass ionomers.
- No significant changes in tensile strength or surface roughness were detected.
Conclusions:
- Neutral 5000 ppm fluoride gel application leads to significant fluoride uptake and subsequent release in aged glass ionomers.
- In situ application of fluoride gel may increase oral fluoride concentrations.
- Restoration integrity (tensile strength, surface roughness) remains unaffected by these fluoride applications.
