The CORI Handpiece bur exposure is ______ mm.

• A. 10 mm
• B. 12 mm
• C. 8 mm
• D. 15 mm

Answer: (B)

The bur exposure is the distance the cutting bur extends beyond the end of the handpiece, which affects both cutting efficiency and safety. For the CORI Handpiece, the recommended exposure is 12 mm. This length provides enough bur protrusion to cut effectively while keeping the handpiece and surrounding tissues under control, reducing the risk of soft tissue contact. If the exposure is too short, cutting may be inefficient or impractical; if it’s too long, there’s a higher chance of tissue injury and reduced maneuverability. Therefore, 12 mm is the optimal setting for this handpiece.