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Aim  To compare the amount of remaining cement excess after cementation of implant-supported zirconia crowns with zinc phosphate or calcium aluminate glass ionomer cement.    MATERIALS AND METHODS  Twenty zirconia crowns were cemented on dental implant abutments using a calcium aluminate glass ionomer cement ( n  = 10) and zinc phosphate cement ( n  = 10). After removal of cement excess, remaining cement excess were measured with pixel area calculation method and by weighing. Differences in amount of remaining cement excess were analyzed using Independent Samples  t -Test. Level of significance was set at  p  = 0.05.    Results  Zinc phosphate cement had a significantly greater amount of remaining cement excess than calcium aluminate glass ionomer cement in terms of total number of pixels ( p  = 0.002) and amount in grams ( p  = 0.005).    Conclusion  The study suggests that the amount of remaining cement excess can be affected by the type of cement. Calcium aluminate glass ionomer cement may be a more suitable choice for cement-retained dental implant restorations, and possibly reduce the risk of complications related to cement excess such as peri-implant disease. Further studies are needed to verify the results from the present study.

The influence of two different cements on remaining cement excess in cement-retained implant-supported zirconia crowns. An in vitro study