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

Anotations

Scope note:

Appliances comprising a thin sheet of rubber, pierced by a dental dam punch to allow the crowns of one or more teeth to protrude, with the purpose to provide moisture control, operator visibility, and hygienic conditions.