Dental Casting Alloys Overview

A non-noble metal, meaning it is prone to corrosion.

The process involves heating the alloy to a specific temperature, holding it for a certain duration, and then cooling it at a controlled rate.

These alloys are typically used for removable partial dentures, clasps, and some crowns.

It is an intermetallic compound formed when nickel and aluminum are combined. This compound significantly enhances the strength of the alloy.

This process is used to clean and improve the surface finish of base metal alloys by removing oxides and other contaminants.

A combination of gold and copper in specific proportions. It forms ordered structures that increase the strength and hardness of the alloy.

The ability of a metal to resist deformation under stress. It is an important property in dental alloys, especially those used in fixed restorations.

A specific type of heat treatment used for gold alloys. It involves heating the alloy to a specific temperature (around 450°C), holding it for a period, and gradually cooling it to room temperature.

This process is essential for producing thin and intricate dental restorations, especially with base metal alloys.

A special type of investment used for casting base metal alloys. It is designed to withstand the high temperatures involved in the process.

The amount of gold, expressed as parts per thousand, in a gold alloy. For example, a 750 fine gold alloy contains 75% pure gold.

Special elements added to alloys to prevent the formation of oxides during melting. This improves the castability and fluidity of the alloy.

The ability of a metal to be stretched or elongated before it breaks. It is an important property for dental alloys as it allows for some flexibility and deformation during chewing.

The ability of a metal to be hammered or rolled into thin sheets without breaking. It is an important property for dental alloys as it allows for the creation of thin and intricate restorations.

This metal is known for its excellent corrosion resistance and biocompatibility. It is often used in dental implants due to its ability to integrate with bone.

Metals that are highly resistant to corrosion due to their chemical inertness and tendency to form protective oxide layers. Examples: Gold, Platinum, Palladium.

Elements that can refine the grain size of an alloy, leading to an improvement in strength and ductility. Examples: Iridium, Ruthenium, Rhodium.

A method for cleaning the surface of base metal alloys by immersing them in a pickling solution. This removes oxides and other surface contaminants.

Alloys that are primarily composed of base metals like nickel, cobalt or chromium. They are used in dentistry for crowns, bridges, and removable partial dentures.

It is a phase transformation that occurs in certain alloys, such as nickel-chromium alloys. It forms brittle, weak precipitates that can negatively affect the alloy’s strength and ductility.

These alloys are generally used for restorations that are subject to high stress, such as crowns and bridges.

A measure of a material's resistance to deformation or compression. It is an important property for dental alloys as it indicates how well they can withstand chewing forces.

The process of removing unwanted material from a casting by using a high-speed rotary instrument. It is a common step in dental procedures to shape and refine restorations.

This metal is known for its excellent strength, corrosion resistance and high melting point. It is often used in dental alloys to improve their properties.

A special type of casting machine that uses centrifugal force to create a restoration. It is often used for base metal alloys due to their high melting temperature.

Adding various elements to gold alloys to change their properties, such as strength, hardness, color, and melting point.

These alloys are a popular alternative to traditional gold alloys, offering a combination of strength, corrosion resistance, and cost-effectiveness.

The temperature at which a metal melts and becomes a liquid. This is an important factor in choosing the right casting machine for dental alloys.

The ability of a metal to resist corrosion and oxidation. This is essential for dental alloys, which must withstand the harsh conditions of the oral cavity.

A potential health hazard in dental alloys. It can cause allergies and long-term respiratory problems.