The bacterial adhesion on and the cytotoxicity of various dental cements used for implant-supported fixed restorations.

Objective: Bacterial adhesion on and cytotoxicity of eight luting agents used for implant-supported restorations were investigated.

Materials And Method: Surface roughness (Ra), surface free energy (SFE) values and three-dimensional images by atomic-force microscopy of circular specimens were determined. Bacterial suspensions of Streptococcus sanguinis and Streptococcus epidermidis were incubated at 37°C for 2 h.