FIELD: medicine.
SUBSTANCE: invention refers to medicine. A supply device comprises a dental material chamber, a piston for dental material extrusion from the chamber, and a screw drive mechanism for piston advance in relation to the chamber. The screw drive mechanism comprises a screw shaft and a catch link. The screw shaft and catch link are detachably coupled and working in relation to each other between the coupled position and uncoupled position. In the coupled position, the screw shaft and catch link are detached from each other.
EFFECT: device is relatively reliable and cheap to produce; it simplifies the preparation of the dental material for its use.
19 cl, 17 dwg
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