Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment (hierarchy name)
4. Tools and Equipment (hierarchy name)
5. equipment
6. [equipment by process]
7. medical equipment
8. dental instruments

Additional parents:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment
4. Tools and Equipment
5. equipment
6. equipment by process
7. drilling equipment
8. drilling tools
9. drills
10. drills by form

Anotations

Scope note:

Rotary instruments used to remove tooth substance, particularly in the treatment of caries. Historically, the drill was hand-operated or pedal-driven. Modern dental drills operate by an electric motor; they consist of a dental handpiece that may be fitted with variously shaped burs.