Classification of dental burs

High speed burs

(1) Structure: It is divided into working end, neck and handle, and the handle can be installed on the fast machine. According to the shape, it can be divided into high-speed split drill, ball drill, inverted cone drill, pear-shaped drill, pith drill and so on. The working end of the drill has a rounded blunt non-cutting tip.

(2) Uses: pulp opening, caries removal, and hole preparation. The pulp drill is used to remove the roof of the pulp chamber and form the opening hole without destroying the bottom of the pulp chamber.

Low speed needle

(1) Structure: Same as the high-speed bur, with a groove and a half-section at the end of the shank, which can be embedded in the slow-speed bending machine head. According to the shape, it can be divided into low-speed split drill, ball drill, inverted cone drill and so on.

(2) Purpose: caries removal and hole preparation.

Grinding needle

(1) Structure: Same as the high-speed bur, the working end is made of sandstone or corundum, tungsten steel and other structures. Divided into high-speed grinding burs (also divided into cylindrical, wheel-shaped and torch-shaped, etc.), low-speed contra angle grinding burs (also divided into spherical and green fruit shapes, etc.) and low-speed straight handpiece grinding burs (long handle, and divided into Cylindrical, wheel-shaped and knife-edge-shaped, etc.).

(2) Uses: teeth adjustment, grinding and polishing.