Which factor is NOT associated with the benefits of a non-rigid fiber post?

A non-rigid fiber post is designed to provide several benefits in endodontic treatments, particularly when it comes to restoring tooth structure after root canal procedures. The factor that is not associated with the benefits of this type of post is the increased risk of catastrophic root fractures.

Non-rigid fiber posts are known for their ability to improve force distribution along the root of the tooth. By being flexible to some degree, these posts can adapt to the natural movement of the tooth during functional loading, thus minimizing the concentration of stress in any one area, which helps in preventing fractures.

Additionally, non-rigid fiber posts ensure retentiveness while exerting minimal stress on the canal walls. Their design allows for excellent bonding with the resins used in cementation without compromising the integrity of the root structure. This is crucial, as excessive stress can lead to potential complications or failures in the restoration.

The enhancement of polymerization of resin composites in the apical area is another advantage, as these posts can facilitate deeper penetration of light or chemical initiators, resulting in better curing and overall bond strength.

In contrast, while metal posts can increase the risk of catastrophic root fractures due to their inflexible nature, non-rigid fiber posts are specifically designed to counteract this issue