Upper incisor with post for dental crown. Close-up of the upper incisors of a patient undergoing dental crown surgery on the second upper incisor at left. Here, a dental post has been implanted into the incisor root. A dental crown will fixed to that to restore the function of the tooth. There is also decay (black area) in the canine at centre left. For the incisor root before the dental post was placed, see image C029/9596. For the dental crown in place, see image C029/9598.