Patent ID: 6902399

Claim:
A cleaning instrument ( 10 ) for a tooth root canal or tooth interstice, comprising a head portion ( 12 ) and, adjacent thereto, a cleaning portion ( 14 ) having a shank ( 20 ) provided with bristles ( 22 ) on its external surface, the shank having a longitudinal axis, wherein the shank ( 20 ) is of integral construction with the bristles ( 22 ), and has a core ( 18 ) made from a stiffening material, wherein the shank ( 20 ) has a substantially conical shape and which symmetrically surrounds the core ( 18 ), and wherein the bristles ( 22 ) are arranged, at least in part, inclined towards the longitudinal axis of the shank and wherein the bristles ( 22 ) protrude from the shank ( 20 ) in a substantially perpendicular direction.