What is a common use for amalgam in dental practice?

Amalgam is commonly used in dental practice primarily for filling cavities in posterior teeth. This is due to its durability, resistance to wear, and ability to withstand the forces of chewing. Posterior teeth, including molars and premolars, are often subjected to significant stress from biting and grinding, making a strong filling material essential for long-lasting repairs.

While amalgam is an effective restorative material, it is not typically used for creating crowns for front teeth, as aesthetic materials such as porcelain or composite resin are preferred for their natural appearance. Additionally, amalgam is not utilized for replacing missing teeth—this is generally done with dental implants, bridges, or dentures. Lastly, amalgam is not used to form barriers in orthodontics, which usually involves other materials specifically designed to assist in tooth movement and alignment. Thus, the specific properties of amalgam make it particularly suited for filling cavities in posterior teeth.