Which instrument has a curved end and is not sharp?

• A. Scaler
• B. Curette
• C. Probe
• D. Ultrasonic

Answer: (B)

A curette is defined by its curved, rounded end designed to glide along and adapt to root surfaces without being sharp at the tip. This blunt, scooping geometry lets you remove calculus from beneath the gum line while minimizing tissue trauma, which is exactly what a curved, non-pointed end is intended to do.

In contrast, a scaler uses a sharp, pointed blade for scraping calculus off crowns and supra-gingival areas, a probe has a slender, straight, and generally blunt tip used for measurement rather than score removal, and ultrasonic tips are powered inserts with various shapes but are not described by a single curved, non-sharp end.