Dental bur with liquid-cooled tip

Abstract

Abstract According to the invention, there is provided an elongated liquid-cooled dental bur having a long direction, a proximal part adapted to be inserted into a drive device connected with a source of cooling fluid, a distal part having a cutting tip, a first channel in the proximal part fluidly communicating with the source of cooling fluid and at least one orifice extending from the first channel directed at the cutting tip for directing a spray of cooling liquid at the cutting tip, a cutting tip outer surface, a second channel fluidly communicating with the source of cooling fluid and extending longitudinally through the distal part and into the cutting tip, a discharge port extending through the tip outer surface for cooling the cutting tip. The dental bur may further include a collar radially extending from the proximal part having a circumference, wherein the orifice is disposed in the collar proximal to the circumference, and wherein the collar has an end surface disposed transversely to the long direction facing the distal part, and the orifice is disposed in the end surface. The cutting tip has a substantially cylindrical shape or a tapered shape.

Inventors

• 👤 Charles S. Mandell

Bibliographic Details