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Degradative analysis of glass ionomer polyelectrolyte cements

✍ Scribed by Cook, Wayne D.

Publisher
John Wiley and Sons
Year
1983
Tongue
English
Weight
558 KB
Volume
17
Category
Article
ISSN
0021-9304

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✦ Synopsis

As part of a detailed investigation of the setting mechanisms of dental polyelectrolyte cements, the M3+, Ca2+, and Na+ concentrations in the matrix phase of glass ionomer cements were measured as a function of the cements age by use of a selective degradation technique. In the early stages of cement formation, all three cations were rapidly released from the glass, and it is inferred that both Ca2+ and A13+ are responsible for gelation. Even after 5 X lo4 min, the reaction was incomplete and still continuing.

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