Amalgam (dentistry) and for large foundation restorations, or cores, which are precursors to placing crowns. The reaction between mercury and alloy when mixed together is termed an amalgamation reaction. It will result in the formation of a silver-grey workable mass which can be condensed into cavities. After condensing, the dental amalgam is carved to generate the required anatomical features and then hardens with time. In the pre-1986, the standard composition of alloy is referred to as conventional amalgam alloy. More recently (post-1986), there have been a change in the compositional standard of the alloy due to better understanding of structure-property relationships for
What They Always Tell Us What They Always Tell Us What They Always Tell Us is the first novel by Martin Wilson, focusing on the relationship between two high school age brothers as one begins to embrace his homosexuality. The book was a finalist in the Children's/Young Adult category at the 2009 Lambda Literary Awards, but lost to "Out of the Pocket" by Bill Konigsberg. "What They Always Tell Us" was also chosen for the ALA's 2009 Rainbow List. "What They Always Tell Us" is told from the perspective of two brothers, Alex and James. Alex is a high school junior who struggles with depression;