Name a common instrument used for placing dental materials.

The amalgam carrier is commonly used for placing dental materials, particularly during the restoration process. This instrument is designed specifically to carry and deliver amalgam or other dental materials directly into the prepared cavity of a tooth. Its design typically includes a tube-like structure that allows for easy loading and dispensing of the material, ensuring that it can be precisely placed where needed.

In contrast, other instruments serve different roles in dental practice. An explorer is primarily used for examining the surfaces of teeth for decay or other issues, and a scalpel is utilized for cutting soft tissue during surgical procedures. The handpiece, often used for drilling or shaping enamel and dentin, does not directly place materials but is rather an instrument for altering the tooth structure. Hence, the amalgam carrier stands out as specifically suited for the task of placing dental materials effectively.