Which phase of amalgam is associated with higher strength and lower corrosion?

The gamma phase of amalgam, also known as the silver substance or Ag3Sn, is recognized for its superior mechanical properties. This phase is characterized by its high strength, making it one of the most durable components of dental amalgam. It contributes significantly to the overall structural integrity of the material, thereby providing good resistance to occlusal forces.

Moreover, the gamma phase demonstrates lower susceptibility to corrosion compared to other phases, particularly the gamma 2 phase, which is known to be much weaker and more prone to degradation in an oral environment. The strength and corrosion resistance of the gamma phase make it an essential component in the performance and longevity of dental restorations made from amalgam.

In summary, the strength and reduced corrosion associated with the gamma phase make it critical for the reliability and effectiveness of amalgam restorations in dentistry.