Which sizes of round carbide burs are used for bone removal?

• A. 2 and 1/2
• B. 1 and 3/4
• C. 3 and 1/4
• D. 2 and 3/8

Answer: (A)

When removing bone, you want a bur that can remove a lot of material quickly while still letting you control where you cut. A round carbide bur with a diameter around 2.5 mm provides that balance: it removes bone efficiently in fewer passes but remains manageable for shaping the surrounding area. Smaller bur heads would be too slow for bulk bone removal, while much larger heads can be harder to control and increase the risk of removing too much bone or affecting nearby tissues. So the 2.5 mm diameter is the typical, preferred size for bone removal, with irrigation and careful technique to prevent overheating.