Dentistry – Apparatus – Tool bit
Patent
1983-08-15
1985-04-16
Peshock, Robert
Dentistry
Apparatus
Tool bit
433 82, A61C 302
Patent
active
045113343
ABSTRACT:
A dental rotary cutting instrument is provided, which is adapted to be driven by a dental handpiece and to cut slots for receiving implants into a jaw. The instrument includes a sawblade, which has a periphery and is provided at the periphery with sawteeth and is formed with a plurality of angularly spaced apart, radial passages, which open at said periphery. Driving and coolant supply means are adapted to be connected to a dental handpiece and to transmit torque from the handpiece to the sawblade to rotate the latter and are adapted to supply a coolant from the handpiece to each of the radial passages at a point which is radially inwardly spaced from the periphery.
REFERENCES:
patent: 1117660 (1914-11-01), Gilmore
patent: 3240243 (1966-03-01), Golick
patent: 3663787 (1972-06-01), Haswell et al.
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