Dental burr
AssigneeStar Dental Manufacturing Co., Inc.
InventorJohn E. Nash
Life of this patent
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Abstract
This application describes a dental burr including a cutting surface having one or more grooves therein, each of the grooves being defined by a plane which encircles the cutting surface at a skewed angle with respect to the axis of rotation of the burr. Such groove(s) provide an oscillatory chip clearing action as the burr rotates to give edge cutting and fast chip clearance. The cutting surface has abrasive particles coated thereon.
Claims7
A dental burr comprising a shank terminating, at the operative end thereof, in a cutting surface, said cutting surface having a plurality of non-intersecting grooves therein, said non-intersecting grooves being the only grooves in said cutting surface, each of said non-intersecting grooves being defined by a plane which completely encircles said cutting surface at a skewed angle with respect to the axis of rotation of said burr, one of said planes defining one of said non-intersecting grooves being at an angle with respect to the plane defining another of said non-intersecting grooves.
Dependencies are inferred from the claim text.