Lab TC Carbide Burs

Tungsten carbide burs for the dental laboratory, used for trimming and contouring acrylic, metal frameworks and denture bases. Carbide holds a cutting edge far longer than steel on these materials, and the cut pattern matters more than the shape: cross-cut removes bulk fast, fine-cut leaves a surface that needs much less polishing afterwards.

Cross-cut burs. Aggressive removal for gross reduction of acrylic and initial framework trimming, where speed matters more than surface finish.

Fine-cut and finishing burs. For refining contours and margins, leaving a smoother surface going into the polishing sequence.

Shapes. Cylindrical, cone, pear, round and flame patterns, chosen for the access the work allows rather than by preference.

Working speed. Carbide performs best within its intended speed range. Running too slowly causes chatter and chipped blades, running too fast overheats acrylic and loads the flutes.

Care. Clean the flutes between uses. A clogged bur cuts by friction rather than by edge, which burns the work and finishes the bur.