Resumo

FIGUEIREDO, Viviane Maria Gonçalves de et al. Antibacterial action of resin cements on microorganisms of dental biofilm. RFO UPF [online]. 2015, vol.20, n.2, pp. 150-154. ISSN 1413-4012.

Objective: This study aimed to examine the antibacterial action of dual-curing resin cements on microorganisms of dental biofilm. Materials and method: Three resin cements were selected (Panavia™ F2.0, Fill Magic Dual Cement™, and Enforce™), as well as bacterial strains of Streptococcus mutans, Streptococcus sanguis, Streptococcus sobrinus, and Lactobacillus casei. Through the well and surface techniques, the agar diffusion test was used with light-cured and fresh cements. After 24 hours of incubation, readings of inhibition halos were taken. Results: The Panavia™ F2.0 produced inhibition halos on all bacterial strains, regardless of the state or technique applied. The Fill Magic Dual Cement™, when fresh, presented antibacterial action on all strains studied, however, when light-cured, it produced antibacterial action only on strains of S. sanguis and L. casei. On the other hand, the resin cement Enforce™ did not produce halos on any bacterial strain. Conclusion: Panavia™ F2.0 was the resin cement with the highest antibacterial action, followed by Fill Magic Dual Cement™. However, the Enforce™ cement showed no antibacterial action on microorganisms of dental biofilm.

Palavras-chave : Dental cements.; Biofilms.; Streptococcus.; Lactobacillus..