Abstract: The present invention relates to low in silver particulate dental amalgam alloys comprising by weight from about 46 to 48% silver, about 23 to 33% tin, about 20 to 28% copper and about 0.5 to 5% indium.The dental amalgam alloys of the present invention have been found to be particularly efficacious when incorporated in blends with high silver particulate dental amalgam alloys, said high silver alloys being used in amounts between about 30% and 70% of the total alloy blend.

Abstract: The present invention provides a self activating multicompartment container comprising an outer wall defining a chamber, a partition dividing the chamber into first and second compartments, a first, high specific gravity liquid component of a composition contained in the first compartment and a second component of the composition contained in the second compartment, wherein the container may be subjected to rapid oscillatory motion so as to cause the high specific gravity liquid component to rupture the partition so that admixture of the components takes place.The container of the invention is useful for storage, transportation and admixture of the components of compositions in which one component is a high specific gravity liquid such as mercury, an example of such compositions being dental amalgams. The container may be activated by being inserted in a vibratory mixture and does not require the use of a plunger.

Abstract: The present invention provides a multi-compartment container designed for storage and transportation in separated condition of the components of a composition, particularly where the components are interactive, and for admixture of the components when required for use. The container comprises a chamber separated into first and second compartments by a partition, wherein the first compartment is arranged to receive a first component of a composition and the second compartment is arranged to receive a second component of the composition, the partition is mounted on the interior of the container and the first compartment is provided with a plunger which is sealingly slidable within the first chamber, is initially mounted in an extended condition so that the innermost end of the plunger defines a wall of the first compartment opposite to the partition and is arranged to be depressed and to separate a portion of the margin of the partition from the interior of the chamber.

Abstract: A dental alloy powder containing silver, tin and copper and, optionally, other alloying metals which has been rendered spherical by a heat treatment to melt at least a surface stratum of the particles of the alloy, followed by cooling.

Abstract: The present invention provides a multi-compartment container designed for storage and transportation in separated condition of the components of a composition, particularly where the components are interactive, and for admixture of the components when required for use. The container comprises a chamber separated into first and second compartments by a partition, wherein the first compartment is arranged to receive a first component of a composition and the second compartment is arranged to receive a second component of the composition, the partition is mounted on the interior of the container and the first compartment is provided with a plunger which is sealingly slidable within the first chamber, is initially mounted in an extended condition so that the innermost end of the plunger defines a wall of the first compartment opposite to the partition and is arranged to be depressed and to separate a portion of the margin of the partition from the interior of the chamber.