DANB General Chairside Practice Test

What is the primary purpose of a barbed broach in dental practice?

1. To shape canals

2. To remove necrotic tissue

3. To smooth surfaces

4. To fill root canals

The correct answer is: To remove necrotic tissue

The primary purpose of a barbed broach in dental practice is to remove necrotic tissue from the root canals. This instrument is specifically designed with barbed edges that allow it to grasp and remove soft tissue and debris during endodontic procedures. When a dentist or dental hygienist encounters a necrotic pulp or infected material within the canal, the barbed broach can effectively capture these materials, facilitating proper cleaning and disinfection of the canal space. This tool is particularly valuable in endodontics, where ensuring that all tissue is removed is crucial for the success of root canal therapy. By eliminating necrotic tissue, the barbed broach helps to prevent further infection and supports the healing process. Other instruments and techniques may be used for shaping canals or filling them, but the unique design of the barbed broach is specifically advantageous for the removal of soft tissue.