Which tool is used for putting a base onto study models?

The tool used for putting a base onto study models is indeed a base former. This instrument is specifically designed to shape and create a stable bottom or foundation for study models, which are essential in the process of dental treatment planning and fabrication of various dental appliances. A base provides structural integrity and allows for smoother handling and improved aesthetics of the study model.

The base former typically consists of a tray or a mold where the dental stone material is placed and shaped. Once the material sets, it forms a solid base that can easily be worked with or stored. This is crucial for accurate measurements and evaluations during dental procedures.

While the model trimmer is used for refining and smoothening the edges of set models, it does not create a base. An extruder gun is employed for dispensing materials like dental impression materials or filling material, rather than forming bases. A denture case serves a different purpose by providing storage for completed dentures rather than assisting in the creation of study models.