牙科

抽象的

Measure of sound tooth tissue staying to hold a regular crown of Post and Center Crown

Wojciech Kondrat

A post and center crown is a kind of dental reclamation required where there is an insufficient measure of sound tooth tissue staying to hold a regular crown. A post is solidified into a readied root waterway, which holds a center rebuilding, which holds the last crown. The job of the post is initially to hold a center reclamation and crown, and also to reallocate pushes down onto the root, in this way diminishing the danger of coronal crack. The post doesn't assume any part in building up or supporting the tooth and can indeed make it bound to crack at the root. The advantage of setting a post into a root trench is improved maintenance of the crown. Be that as it may, there are additionally hindrances, during the groundwork for the post space there is a danger of hole, a post can likewise make a tooth bound to break, it makes future orthograde root channel treatment significantly more troublesome lastly it is exceptionally ruinous and requires unreasonable evacuation of tooth tissue. The presence of ferrule can build the crack opposition of the post. Posts are more regularly needed for front teeth instead of back teeth. The essential purpose behind this is that multi-established teeth have a huge mash chamber which can be used for maintenance of the center and accordingly the crown, while foremost teeth are a lot more modest and less retentive. At the point when it is beyond the realm of imagination to expect to hold a center on a back tooth and a post is required, close to one post ought to be utilized per tooth, and this ought to be put in the biggest trench accessible. This is on the grounds that more than one groundwork for a post will include exorbitant dentine evacuation and increment the crack danger. A superior option in contrast to posts on a back tooth is center rebuilding which stretches out down into the passageway of the root waterway through the Nayyar strategy utilizing a combination dowel–center. In this strategy, maintenance for the blend center is gotten from the leftover mash chamber and the readied waterways by stretching out mixture to these territories.