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Initial mercury evaporation from experimental Ag–Sn–Cu amalgams containing Pd

Paper ID Volume ID Publish Year Pages File Format Full-Text
12416 792 2004 7 PDF Available
Title
Initial mercury evaporation from experimental Ag–Sn–Cu amalgams containing Pd
Abstract

This study examined the Hg evaporation during setting from experimental Ag–Sn–Cu alloy powders with and without Pd. Four series of alloy powders were fabricated to examine the effect on the Hg evaporation of the alloy compositions (all percentages in this report are weight percents): Pd (0–1.5), Cu (9.0–14.0), Ag (57.0–63.7), and Sn (24.9–29.5). These variations in composition produced alloy powders with γ-Ag3Sn to β-Ag4Sn ratios varying from 0.0 to 23.9. The total amounts of Hg released from 10 min after trituration were measured from cylindrical specimens (4×8 mm; n=4) at 37°C using a Hg vapor analyzer. The results were compared to those from commercial alloys (one high-Cu and one low-Cu alloy). All amalgams made from alloys containing 1.5% Pd exhibited lower Hg vapor release than any other amalgams, with the exception of the low-Cu amalgam. The results clearly showed that the alloy formulation affected the mercury evaporation behavior during setting of the resultant amalgams. A small addition of Pd to the alloy can produce amalgams with 50–60% less Hg vapor release during setting than a leading commercial high-Cu amalgam, Tytin.

Keywords
Dental amalgam; Mercury; Palladium; Copper; Dental alloy
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Initial mercury evaporation from experimental Ag–Sn–Cu amalgams containing Pd
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 25, Issue 16, July 2004, Pages 3147–3153
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us