16/07/2021
performing the root canal work through the crown (making the procedure’s “access cavity” directly through it).
Unfortunately, as simple as this plan sounds, the reality of removing a crown from its tooth can be quite difficult (or even impossible) to do without damaging
The first choice is to remove the crown before drilling it to create and access hole but in many cases, it is not possible. The second choice is to drill the access hole through the crown
*All-metal crowns.
Drilling a hole through an all-metal crown (e.g. gold) probably won’t significantly affect its overall strength and the level of protection it provides for its tooth.
-> simply repair it by way of placing a dental filling (such as dental amalgam or miracle mix restoration for all-metal crown)
*(If! )
Porcelain-fused-to-metal crowns.
Creating an access cavity through a PFM restoration probably won’t significantly affect its overall strength characteristics either.
But doing so may affect the integrity of its porcelain covering (outer shell), possibly resulting in chipping or fracture, especially in the region immediately around the access cavity.
