Evaluation of corrosion behaviour and some mechanical properties of silver-rich, gamma 2 free amalgam.
Corrosion behaviour, creep resistance, compressive and tensile strength and hardness of a newly developed silver-rich commercial amalgam were investigated in order to evaluate its performance, as compared with three high copper amalgams, namely; admixed, unicompositional and Pd-enriched. The results have shown that Ag-rich amalgam was superior in corrosion behaviour, compressive and tensile strength. Creep values were comparable to those of Pd-enriched amalgam, whereas hardness measurements of the latter were significantly higher. The results were analysed on a compositional and microstructural bases.
Habib
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AN
Biomaterial Department, Faculty of Oral and Dental Medicine, Cairo University, Egypt.
Metwally
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WA
D003343:Corrosion; D003722:Dental Alloys / Q000737:chemistry; D003723:Dental Amalgam / Q000737:chemistry*; D006245:Hardness Tests; D006801:Humans; D008422:Materials Testing; D019563:Mechanics; D008855:Microscopy, Electron, Scanning; D012834:Silver; D013499:Surface Properties; D014961:X-Ray Diffraction
D003722:Dental Alloys; C033470:Dispersalloy; D012834:Silver; C031360:Sybraloy; D003723:Dental Amalgam