Question

Precurving files is indicated

A. for files sizes #35 and over.
B. in canals that are even slightly curved.
C. as a way to negotiate past canal obstructions.
D. All of the above
E. Only (1) and (2) above
F. Only (2) and (3) above

Answer 1

Precurving files in endodontics is mainly indicated for navigating curved canals and bypassing obstructions within the root canal system applicable to option F. Only (2) and (3) above.

Step-by-step explanation:

Precurving files is a technique used in endodontics when working with root canals. The correct answer to the question is F. Only (2) and (3) above. Precurving files are indicated:

1. in canals that are even slightly curved to reduce the risk of perforating the canal walls
2. as a way to negotiate past canal obstructions such as debris, calcifications, or tight curves that might prevent a straight file from progressing.

While size #35 files may be precurved in some circumstances, the act of precurving is not limited to files of this size or larger; hence, option A is not a universally correct indication. Precurving is an essential technique for maintaining the original canal path and preventing iatrogenic errors during endodontic procedures.

Precurving files in endodontics is a crucial technique employed not solely for larger files like size #35, as suggested in option A. Rather, it is essential in canals with even slight curvature to mitigate the risk of perforating canal walls. This method aids in negotiating past various obstructions such as debris, calcifications, and tight curves that might impede the progress of a straight file.

The act of precurving is not limited to specific file sizes, emphasizing its universal importance in maintaining the original canal path and preventing iatrogenic errors during endodontic procedures. Therefore, the correct answer to the question is F, encompassing points (2) and (3) above.