Which item are tapered points used to fill a root canal?

• A. Gutta-percha points
• B. Paper points
• C. Cresophene
• D. Tapered diamond bur

Answer: (A)

The key idea is how root canals are sealed after cleaning and shaping. Gutta-percha points are designed as tapered cones that fit into the canal and, when used with a sealer, fill and seal the space to prevent leakage. They are biocompatible and can be softened with heat to adapt to the canal’s shape, which is essential for a dense, three‑dimensional fill. Paper points, on the other hand, are used to dry the canal; Cresophene is an antiseptic medicament used during cleaning, not for filling; and a tapered diamond bur is a cutting instrument used to prepare or shape the canal rather than obturate it. So the tapered filling material is gutta-percha points.