FIELD: medical engineering.
SUBSTANCE: device has non-aggressive tip and grooves on external surface. Conic cavity is coaxial with the pin. The conic cavity has insert stump protruding above pin head part. Cavity wall and insert are threaded. The grooves pass through pin body to 3/4 of its length in plane passing through pin center. The protruding insert portion has retention points.
EFFECT: high strength, sealed, stable cosmetic results; exactly repeated tooth root canal shaped.
1 dwg
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