Dental burr

Details Dental burr Dental burr

A - Human Necessities

61

C

83/15

A61C 3/02 (2006.01)

Patent

CA 1108895

DENTAL BURR Abstract of the Disclosure A dental burr for generating a relatively smooth surface on tooth enamel comprises an elongated shank with an operative end and an end adapted to engage a chuck of a dental handpiece. Any cross-section of the operative end perpendicular to the shank's longitudinal axis is circular with a diameter of less than 0.140 inch. Adjacent, continuous annular grooves extend around the operative end, each groove being defined by a pair of inwardly sloping side surfaces intersecting with each other at least about 0.010 inch from the shank's longitudinal axis and forming an angle of 60° to 150° between the side surfaces. An abrasive material, such as diamond grit, having a particle size of less than 0.006 inch covers at least a portion of each surface.

320313

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