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Amalgam (dentistry) Amalgam filling on first molar. In dentistry, amalgam is an alloy of mercury used to fill teeth cavities. [1] It is made by mixing a combination of liquid mercury and particles of solid metals such a silver, copper or tin. The amalgam is mixed by the dentist just before use.
Jul 31, 2016 · Amalgam is a metal alloy of which one of the elements is mercury (Hg). Alloys are metals that are a combination of several elements. Dental amalgam is made by mixing approximately equal parts (by weight) of a powdered metal alloy with liquid mercury. The powdered metal is called an amalgam alloy and is predominantly silver (Ag) and tin (Sn).
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Amalgam is any alloy that contains mercury.Copper, silver, and tin are the major components in dental amalgam but it may also contain zinc, indium, mercury, gold, platinum, and palladium. 2, 12, 13 Amalgamation is the name given to the process of mixing liquid mercury (approximately 42 to 50% by weight) with the other alloys to form a highly plastic material that hardens following ...
May 1, 2015 · There are properties of amalgam that are crucial when we consider the cavity design, some of these are listed below: Amalgam is non-adhesive – it relies on being mechanically retained in the cavity. Amalgam is brittle in thin sections – therefore there is a minimum 2mm depth for an adequate cavity, as well as many other key features in the ...
Feb 11, 2020 · List two indications for finishing and polishing amalgams. 6. Discuss the possible results of poor amalgam placement and carving. 7. Assess an amalgam restoration to determine whether it needs replacement or finishing and polishing. 8. Differentiate between the procedures of amalgam finishing and amalgam polishing. 9.
Dental amalgam is one of the most versatile restorative materials used in dentistry. It constitutes approximately 75% of all restorative materials used by dentists. It has served as a dental restoration for more than 165 years. There is still no adequate economic alternative for dental amalgam.
Jan 9, 2015 · Indications. Complex posterior amalgam restorations should be considered when large amounts of tooth structure are missing and when one or more cusps need capping ( Fig. 16-1 ). 1 Complex amalgams can be used as (1) definitive final restorations, (2) foundations, (3) control restorations in teeth that have a questionable pulpal or periodontal ...
