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Blood mercury levels with amalgam retroseals: a longitudinal study
J R Skoner1, J A Wallace, F Fochtman
1Department of Pharmacology-Toxicology, Duquesne University, Pittsburgh, Pennsylvania, USA.
Journal of Endodontics
|March 1, 1996
Summary
Placement of an amalgam retroseal does not significantly increase blood mercury levels. This clinical study found no statistical difference in mercury content 7 and 30 days post-procedure.
Area of Science:
- Dental Materials Science
- Clinical Toxicology
Background:
- Amalgam restorations are widely used in dentistry.
- Concerns exist regarding potential mercury release from dental materials.
- Amalgam retroseals are used to prevent leakage in dental fillings.
Purpose of the Study:
- To investigate if amalgam retroseals cause elevated blood mercury levels.
- To assess mercury exposure following the placement of amalgam retroseals.
Main Methods:
- A clinical study involving ten subjects.
- Blood samples collected pre-procedure and at 7 and 30 days post-procedure.
- Mercury analysis using Cold-Vapor Atomic Absorption Spectrophotometry.
Main Results:
- No statistically significant increase in blood mercury levels was observed.
- Blood mercury levels at 7 and 30 days post-placement were comparable to baseline.
- p = 0.97 indicates no significant difference.
Conclusions:
- Placement of amalgam retroseals does not lead to significant mercury elevation in the blood.
- Findings support the safety of amalgam retroseals regarding mercury exposure.