6. Gold alloy â gold-colored mixture of gold, copper and other metals, and is used mainly for crowns, fixed bridges and some partial denture framework. 1  Advantages â good resistance to further decay if fits well; excellent durability-does not fracture under stress; does not corrode in the mouth.or more than 150 years, dental fillings known as amalgams have been widely used to treat tooth decay. Amalgam fillings are made of a mixture of metals. The ingredients include equal parts of elemental mercury (43 to 54 percent), and an alloy powder (46 to 57 percent) mainly composed of silver, tin, copper.
limit order. Definition. An order to a broker to buy a specified quantity of a security at or below a specified price, or to sell it at or above a specified price (called the limit price). This ensures that a person will never pay more for the stock than whatever price is set as his/her limit.
Â· just now. Report Abuse. A market order means it is executed at the price in the market. A limit order allows you to specify a certain price you want for the order--say, you only want to buy the stock at a price of $11.00 or lower.A stop order usually means that you are placing an order ahead of time that if your stock drops below a certain price, it will automatically be sold. just now. Report Abuse. A market order means it is executed at the price in the market. A limit order allows you to specify a certain price you want for the order--say, you only want to buy the stock at a price of $11.00 or lower.