Evaluation of two cementation protocols for lithium disilicate crowns on zirconia one-piece implants: a micro-CT analysis of cement thickness, porosity, and excess

Both the cement type and the application protocol appeared to influence the characteristics of the cement interface. In this study, the ARC tended to produce a more uniform and less porous cement layer, whereas the abutment-assisted protocol was associated with reduced amounts of excess cement. These findings suggest that modifications to the cementation protocol may help to optimize outcomes for zirconia one-piece implant restorations, particularly when using self-adhesive resin systems.