Influence of dental filling material type on the concentration of interleukin 9 in the samples of gingival crevicular fluid

Background/Aim. Several cytokines and lymphokines (IL1 beta, ENA78, IL6, TNF alpha, 118 and S100A8) are expressed during dental pulp inflammation. Analysis of gingival crevicular fluid (GCF) offers a non-invasive means of studying general host response in oral cavity. Although GCF levels of various mediators could reflect the state of inflammation both in dental pulp and gingiva adjacent to a tooth, GCF samples of those without significant gingivitis could be interpreted as reflection of pulpal process. The aim of this study was to investigate IL9 GCF values in patients with dental caries and to assess possible influence of various dental fillings materials on local IL9 production. Methods. The study group included 90 patients, aged 18-70, with inclusion and exclusion criteria in the prospective clinical study. Of the 6 types of material used for the restoration of prepared cavities, 3 were intended for temporary and 3 for definitive restoration. According to dental fillings weight, all the participants were divided into 3 groups: those with fillings lighter than 0.50 g, those with 0.50-1.00 g, and those with fillings heavier than 1.00 g. Samples were taken from gingival sulcus using the filter paper technique. Clinical parameters were determined by bleeding index, plaque index (Silness-Lou, 0-3),