A wheel diamond bur in dentistry is a precision rotary instrument used for cutting, contouring, shaping, and polishing tooth structure and dental materials. It features a wheel-shaped head coated with fine industrial diamond particles, allowing for controlled and efficient removal of enamel, dentin, and restorative materials.

Dentists commonly use wheel diamond burs for crown preparation, adjusting occlusal surfaces, smoothing fillings, and refining restorative work. The wheel shape provides excellent access for creating flat surfaces and precise reductions while maintaining accuracy in limited or hard-to-reach areas of the mouth.

These burs are available in different grit levels—coarse for rapid cutting and fine for finishing and polishing—making them suitable for various stages of dental procedures. Their durability, precision, and smooth cutting action make them an essential tool in restorative and prosthetic dentistry.