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  • Title: Effect of two different polishing systems on fluoride release, surface roughness and bacterial adhesion of newly developed restorative materials.
    Author: Bayrak GD, Sandalli N, Selvi-Kuvvetli S, Topcuoglu N, Kulekci G.
    Journal: J Esthet Restor Dent; 2017 Nov 12; 29(6):424-434. PubMed ID: 28618104.
    Abstract:
    OBJECTIVES: To evaluate the effects of two different polishing systems on fluoride release, surface roughness and bacterial adhesion of five restorative materials MATERIALS AND METHODS: The study groups were comprised of five different restorative materials, Beautifil II (B); GCP Glass Fill (G); Amalgomer CR (A); Dyract XP (D); Fuji IX GP (F) and 21 specimens were prepared from each material. Each group was divided into three subgroups according to the polishing system: Mylar (control) (C), Sof-lex (S), and Enhance-Pogo (EP). The amount of fluoride release was measured using a fluoride ion-selective electrode and surface roughness was investigated with a profilometer. Bacterial adhesion on the materials was evaluated by optical density readouts for S.mutans on a spectrophotometer. RESULTS: The highest amount of fluoride was released from specimens in the S subgroup of group G during all measurement days. Surface roughness values were significantly lower in subgroup C than the other polishing systems in all study groups except group G (P < .05). Group A displayed significantly higher surface roughness values than the other material groups in both subgroups (S and EP) (P < .01). Highest bacterial adhesion was observed in the EP subgroup of group A. CONCLUSIONS: Polishing promoted a significant increase of fluoride release on restorative materials especially in glass ionomer-based materials. CLINICAL SIGNIFICANCE: This article stated that polishing promoted a significant increase of fluoride release on restorative materials especially in glass ionomer-based materials. Further, proper polishing systems must be chosen according to the structure and composition of materials to provide the best clinical benefits in terms of fluoride release, surface roughness and bacterial adhesion.
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