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  • <p>The problem with this tooth is that the portion of it that would aid with crown stability and retention has broken off. Fortunately, the missing part can be replaced with a post and core.</p>
     

    The problem with this tooth is that the portion of it that would aid with crown stability and retention has broken off. Fortunately, the missing part can be replaced with a post and core.

  • <p>To make room for the post, the dentist will drill out some of the gutta percha they placed during the root canal procedure.</p><p>(Since the tooth has no nerve, you'll feel the vibration of the drilling but nothing else.)</p>
     

    To make room for the post, the dentist will drill out some of the gutta percha they placed during the root canal procedure.

    (Since the tooth has no nerve, you'll feel the vibration of the drilling but nothing else.)

  • <p>A post's fit in its canal is relatively passive. A tight-fitting or screwed-in post might crack the root.</p><p>(A dentist relies on the post's length, close fit in the canal and cement for retention.)</p>
     

    A post's fit in its canal is relatively passive. A tight-fitting or screwed-in post might crack the root.

    (A dentist relies on the post's length, close fit in the canal and cement for retention.)

  • <p>The dentist will create the "core" by placing filling material around the head of the post. (The purpose of the post is simply to make sure the core is securely anchored.)</p><p>The dentist's goal is to create a nub that's the same general shape as the trimmed tooth would be if portions of it weren't missing.</p>
     

    The dentist will create the "core" by placing filling material around the head of the post. (The purpose of the post is simply to make sure the core is securely anchored.)

    The dentist's goal is to create a nub that's the same general shape as the trimmed tooth would be if portions of it weren't missing.

  • <p>At this point, the post and core procedure has been completed. The rest of the tooth's treatment involves the same steps used to make any crown.</p><p>The dentist will trim and refine the shape of the tooth and take the needed impression ...</p>
     

    At this point, the post and core procedure has been completed. The rest of the tooth's treatment involves the same steps used to make any crown.

    The dentist will trim and refine the shape of the tooth and take the needed impression ...

  • <p>Once fabricated, the dental crown is cemented into place.</p><p>Because the core extends up into the crown, the stability and retention of the crown are vastly improved.</p>
     

    Once fabricated, the dental crown is cemented into place.

    Because the core extends up into the crown, the stability and retention of the crown are vastly improved.