A cast post, also known as a dental post or core, is a restoration used to support a dental crown on a tooth that has undergone root canal treatment. It provides structural support for the crown and helps restore the tooth's functionality. During the procedure, we remove all the decayed or weakened parts of the tooth, shape it, and then we place the cast post into the root canal space. The post is typically made of metal or a tooth-colored material and is anchored and cemented securely in the root canal. Finally, a crown is placed over the post to restore the tooth's appearance and function. This procedure is common in dentistry to save and strengthen damaged teeth after root canal treatment.DR BHAVNA DEDHIA AND TEAM.