The effect of conventional, half-digital, and full-digital fabrication techniques on the retention and apical gap of post and core restorations

摘要

Statement of problem. Conventional cast metal posts and cores are fabricated using direct and indirect techniques, both of which need impression materials and considerable laboratory work. Digital techniques have the capacity to substitute for conventional methods in fabricating the posts and cores. However, the accuracy of restorations resulting from a digital workflow is unknown.