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

Abstract

AIM\nTo compare the amount of remaining cement excess after cementation of implant-supported zirconia crowns with zinc phosphate or calcium aluminate glass ionomer cement.\n\n\nMATERIALS AND METHODS\nTwenty zirconia crowns were cemented on dental implant abutments using a calcium aluminate glass ionomer cement (n\u2009=\u200910) and zinc phosphate cement (n\u2009=\u200910). 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\u2009=\u20090.05.\n\n\nRESULTS\nZinc 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\u2009=\u20090.002) and amount in grams (p\u2009=\u20090.005).\n\n\nCONCLUSION\nThe 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.