Purpose: To develop the most compatible cementation protocol for ensuring minimal residual cement
and optimal retention of cement-retained implant-supported fixed dental prostheses.
Materials and Methods: Thirty custom implant abutments and zirconia crowns with bilateral wings
were prepared. Three cement types were used for cementation: non-eugenol resin cement (Premier
Implant Cement; Group IC), dual-polymerizing self-adhesive resin cement (SmartCem 2; Group SC),
and zinc oxide eugenol cement (Temp-Bond; Group TB) (n=30 per group). Three cementation methods
were applied for each cement type and the samples were divided into subgroups: 1) cement was
injected using a graduated syringe (IC-N, SC-N, and TB-N); 2) a cementation jig made with a silicone
impression material and temporary resin material was used (IC-CJ, SC-CJ, and TB-CJ); 3) three3
dimensionally (3D) printed abutments were used as replicas for cementation (IC-3DP, SC-3DP, and TB-
3DP). The amount of cement injected, surface area of the residual cement, and retentive strength were
measured. Kruskal–Wallis and post-hoc Mann–Whitney tests were used for statistical analyses.
Results: Excess cement was not observed when cementation jig or 3D-printed replicas were used. For
IC and SC subgroups, non-use of these auxiliary tools resulted in significantly higher amounts of
injected cement. The retentive strength differed significantly among the IC subgroups, but not among
the SC subgroups. The retentive strength of subgroups TB-N and TB-CJ was significantly higher than
that of subgroup TB-3DP.
Conclusions: To prolong the main purpose of each cement type, a cementation jig or 3D-printed replica
is highly recommended regardless of the cement type.