What is a characteristic of a broach instrument used in root canal procedures?

A broach instrument, commonly used in root canal procedures, is characterized by its flexibility and tapered design. This specific design allows the broach to navigate through the intricate and often curved anatomy of the root canal system effectively. The tapered shape helps in engaging and removing the soft tissue, particularly the pulp, while the flexibility aids in reaching those areas without risk of fracturing the instrument or damaging the canal walls.

The features of broach instruments make them particularly effective for removing necrotic tissue and debris within the canal, which is essential for successful endodontic treatment. Their unique design is crucial in ensuring that they can adapt to the natural curvature of the root canals, enabling thorough cleaning.

In contrast, instruments with straight cutting edges are typically used for different purposes and may not navigate curved canals as effectively. Additionally, while broaches may assist in widening canals as part of the overall procedure, their primary function is not exclusive to that task alone. The material composition is also relevant; while some dental instruments are indeed crafted from plastic for specific applications, broaches are generally made from metal to provide the necessary strength and durability during the challenging conditions of root canal treatment.