What is a post?
In case of post, it is required to support the anchoring of the core of the tooth. If there is more than half left, a core by itself will almost certainly be enough. Overall, the post doesnt reinforce the teeth, but plays a chief role in strengthening the core in its place.
When the dentist is performing a post and a core, the first action is the use of drill to create a space in alignment with any of the root canals which were filled during the time of sealing a tooths portion which is known as endodontic treatment.