Endokorona – alternatywna metoda odbudowy zębów trzonowych leczonych endodontycznie ze znaczną destrukcją korony
Endocrown – an alternative approach for restoring endodontically treated molars with large coronal destruction
There is still an important challenge for most dentists before being optimistic about the rehabilitation of endodontically treated teeth with extensive coronal destruction. The biomechanical principles of retention and resistance are deteriorating [1]. The existing biomechanical changes due to root canal therapy and the degree of lost dental tissue lead clinicians to restorative treatment planning [2].
For the case of teeth heavily damaged by dental caries or fractures, a treatment with a total crown supported by a cast metal core has been suggested [3]. Yet, a root perforation and thinning of the root canal walls due to over preparation might happen after using intraradicular posts [4].
Moreover, the limitations to the use of intraradicular posts, such as calcified root canals, narrow canals, or a fracture of an instrument, have led dentists to think of other alternatives, as the use of endocrowns, an adhesive endodontic crown [5, 6].
This complete glass ceramic crown restoration was proposed in 1999 by Bindl and Mörmann as a substitute to the full post-and-core-supported crown; „endocrown” is a one-piece ceramic construction. This crown would be fixed to the internal walls of the pulp chamber and on the cavity margins to improve macromechanical retention and the use of adhesive cementation would also improve microretention [...]
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