Relationship between creep, gamma 2, and marginal fracture of dental amalgams

Relationship between creep, gamma 2, and marginal fracture of dental amalgams

The effect of gamma 1 and gamma 2 on the creep deformation of dental amalgams has been investigated. It has been shown that the creep of a conventional amalgam is not dependent on gamma 1 as was previously reported. Rather it is strongly influenced by gamma 2 and its volume fraction. It has been spe...

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Veröffentlicht in:Journal of oral rehabilitation 1983-11, Vol.10 (6), p.489-494
Hauptverfasser: Sarkar, N K, Eyer, C S, Norling, B K
Format: Artikel
Sprache:eng
Schlagworte:
Chemical Phenomena
Chemistry, Physical
Dental Amalgam
Dentistry
Mercury
Silver
Stress, Mechanical
Surface Properties
Time Factors
Tin
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Zusammenfassung:The effect of gamma 1 and gamma 2 on the creep deformation of dental amalgams has been investigated. It has been shown that the creep of a conventional amalgam is not dependent on gamma 1 as was previously reported. Rather it is strongly influenced by gamma 2 and its volume fraction. It has been speculated that Sn-rich grain boundaries also enhance creep by facilitating grain boundary sliding. The reported correlation between creep and marginal fracture has been explained in terms of this dependence of creep on corrosion-prone Sn-rich microstructural constituents of amalgams.
ISSN:0305-182X
1365-2842
DOI:10.1111/j.1365-2842.1983.tb01472.x