Abstract: The present invention concerns totally solid amalgamating compositions particularly useful in the preparation of dental amalgams for filling cavities and similar dental applications, comprising one or more solid amalgamating alloys, metals and/or intermetallic compounds or combinations thereof, amalgam forming compositions containing such totally solid amalgamating compositions, methods for producing dental amalgams with such totally solid amalgamating compositions or amalgam forming compositions containing them, and denial amalgams produced thereby.
Type:
Grant
Filed:
August 13, 1998
Date of Patent:
February 20, 2001
Assignee:
Silmet Ltd.
Inventors:
Alberto Kaufman, Baruch Kopeliovich, Moshe Zalsman
Abstract: A mixing capsule assembly, particularly for use in preparing dental amalgams, comprises an outer capsule for receiving one of the materials to be mixed, and an inner capsule to receive a second material to be mixed and to be enclosed within the outer capsule. The inner capsule includes two sections attachable together by complementary frictionally-engaging surfaces of conical configuration. The arrangement is such that when the inner capsule is impacted against an inner face of the outer capsule during the vibration of the assembly, the complementary surfaces are moved away from each other to permit some of the second material to pass between them and to mix with the material in the outer capsule; and when the inner capsule is impacted against the opposite inner face of the outer capsule, the complementary surfaces are moved back to block the passage of material between them.
Abstract: A mixing capsule for mixing a first material with a second material (e.g. to prepare a dental silver amalgam) comprises a pair of tubular housing sections removably attached to each other and defining between them a first chamber for receiving the first material to be mixed. The second housing section includes a partition integrally joined to its inner surface by a thin connecting web, and a tubular neck above the partition. A plunger is disposed in the neck of the second housing section, the lower face of the plunger defining with the partition a second chamber for receiving the second material to be mixed, the plunger being depressable to cause the partition to be severed along its connecting web from the inner surface of the second housing section and thereby to cause the material in the second chamber to drop into and mix with that in the first chamber.