Teeth with RCT and you want to use post, which post is the least cause to fracture.. Fiber post

Teeth with RCT and you want to use post, which post is the least cause to fracture:

  • A- Ready made post.
  • B- Casted post.
  • C- Fiber post.
  • D- Prefabricated post.

The least likely post to cause fracture in teeth with RCT is C. Fiber post, followed by D. Prefabricated post.

Here's why:

A. Ready-made post:

These standardized posts come in prefabricated sizes and shapes. While convenient, they might not perfectly match the individual root canal space, leading to stress concentrations and potentially increased risk of fracture.

B. Casted post:

These are custom-made posts fabricated in a dental lab from a metal alloy based on the root canal's impression. While they offer a better fit, the casting process itself might introduce weaknesses, and metal posts can increase stress on the surrounding dentin.

C. Fiber posts:

These are composed of strong, flexible fibers bonded into the root canal. Their flexibility helps distribute stress more evenly, reducing the risk of root fracture. Additionally, they are biocompatible and cause less stress on surrounding dentin compared to metallic options.

D. Prefabricated posts:

fall somewhere between ready-made and fiber posts. They are prefabricated but come in various sizes and shapes to allow for some customization. They offer a balance between convenience and fit, but the risk of fracture is slightly higher than fiber posts due to less flexibility and potential for stress concentrations.

Therefore, while all options have their pros and cons, fiber posts generally offer the lowest risk of fracture for teeth with RCT requiring a post. However, the final decision should be made by a dental professional based on individual factors like the specific condition of the tooth and root canal, remaining dentin thickness, and desired crown restoration type.

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