How can internal stresses in a canal be reduced?

Reducing internal stresses in a canal is crucial for ensuring the longevity and integrity of the restoration. Fabricating a thinner post is effective because it allows for greater flexibility and reduces the concentration of stress at the canal walls. A thinner post can adapt more easily to the natural movement of the tooth structure and reduce the likelihood of fracture or failure due to stress.

When a post is too thick, it can create excessive forces on the surrounding dentin, leading to potential cracks or even complete fracture of the tooth. Similarly, a wider post may not be compatible with the canal anatomy, increasing the risk of internal stresses. Shortening the post can also have benefits, but it might not address the distribution of stress as effectively as making the post thinner. Thus, the approach of fabricating a thinner post helps to alleviate the internal stresses that can compromise the tooth's structural integrity.