Endodontic Burs

Endodontic burs and drills for opening the pulp chamber and shaping straight-line access to the root canals. Tungsten carbide access burs with a non-cutting safety tip remove the chamber roof without gouging the floor, and Gates Glidden drills flare the coronal third of the canal.

Start access with a round or fissure bur through enamel, then switch to a safety tip bur to lift the roof and refine the walls. Because the tip does not cut, it can ride along the pulp floor while the sides open up the canal orifices.

Gates Glidden drills are used in a slow-speed contra-angle, working from the smaller sizes up and staying in the straight coronal part of the canal. Replace any bur or drill once cutting slows, since a dull instrument builds heat and is more likely to fracture.