Insights on the pin moncone.
Post and Core Crowns:
Crowns that uses the root of the tooth as a base.
There are two ways to make a Post and Core crown: directly which is modeled in the patient’s mouth and
then finished in the laboratory or indirect which is made entirely in the laboratory.
To make a crown directly, you need to prepare the root canal, modeling it precisely according to the pin but still leaving room for retention. The pivot made of a special material is then molded into the root and then sent to the laboratory which will transform the aforementioned material into a metal pin. Then the dentist will apply the abutment crown.
Nella fase indiretta invece il dentista prende un impronta del canale precedentemente preparato e lo manda in in laboratorio dal tecnico che creerà il perno. Solo dopo la riconsegna il dentista inserirà il perno moncone.
In the indirect phase, on the other hand, the dentist takes an impression of the previously prepared channel and sends it in the laboratory to the technician who will create the pin. Only after delivery will the dentist insert the abutment crown.
The substantial difference between an abutment crown and a crown on implant is therefore the presence
of a root that supports the crown, remember that on the implant the root in which the pin is screwed is
The risk of a direct crown is that the root of the tooth may break due to a shape of the non-congenial
crown at the root.
Nowadays it is preferred to make the indirect crowns with different materials compared to the metal,
which due to the lack of elasticity lends itself to often fraction of the root. Such materials are: glass or carbon fiber or resin.