HOSA Dental Terminology Practice

Which instrument is specifically designed for larger root canal openings?

1. Pesso reamer

2. Root canal plugger

3. Lentulo spiral drill

4. Rotary burs and stones

The correct answer is: Pesso reamer

The Pesso reamer is specifically designed for enlarging larger root canal openings. This instrument is particularly useful in endodontics, as it allows dental professionals to efficiently prepare the root canal system for filling by creating a tapered shape that accommodates the filling materials. Its design features a long, narrow blade with cutting edges that facilitate the removal of dentin and debris, making it highly effective for achieving the desired canal size and shape. Other instruments mentioned have different primary functions. The root canal plugger is intended for compacting filling materials into the prepared canal rather than enlarging it. The Lentulo spiral drill is used to deliver filling materials into the canal but does not serve the purpose of enlarging canals. Lastly, rotary burs and stones are versatile tools for various dental procedures, but they are not specifically tailored for the enlargement of root canal openings in the same manner as the Pesso reamer. Thus, the Pesso reamer stands out as the instrument best suited for this particular task.