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  • Küçük Resim
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    Effect of synbiotics in the treatment of smokers and non-smokers with gingivitis: randomized controlled trial
    (WILEY, 2020) Ercan, N.; Olgun, E.; Kisa, U.; Yalim, M.
    Background To evaluate the efficacy of synbiotic tablets on the clinical and biochemical parameters of smokers and non-smokers with gingivitis. Methods Eighty patients with gingivitis [40 smokers (+), 40 non-smokers (-)] were randomly assigned to test (T) or control (C) groups. Four groups were defined: T(+), T(-), C(+) and C(-). The subjects daily chewed a synbiotic or placebo tablet for 30 days. The gingival crevicular fluid levels of interleukin (IL)-6, IL-8 and IL-10 were determined as the primary outcome variables. Results The clinical and biochemical parameters for all groups significantly reduced compared with the baseline (P < 0.05). While there were no significant differences between the groups for gingival index, the plaque index was significantly higher in both smoker groups than that in the T(-) group during the second month (P < 0.05). IL-8 levels in C(-) and IL-6 levels in both control groups were significantly higher than those in the T(+) group. The IL-10 levels in both control groups were significantly higher than those in the T(-) group during the second month (P < 0.05). Conclusions Adjunctive synbiotic tablets significantly reduce subclinical therapeutic outcomes for both smokers and non-smokers compared with placebo according to the biochemical parameters.
  • Küçük Resim
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    Effect of Titanium-prepared Platelet-rich Fibrin Treatment on the Angiogenic Biomarkers in Gingival Crevicular Fluid in Infrabony Defects of Patients with Chronic Periodontitis: A Randomized Controlled Clinical Trial
    (Wolters Kluwer Medknow Publications, 2018) Pirebas, H. G.; Hendek, M. K.; Kisa, U.; Yalim, M.; Erdemir, E. O.
    Aim: The aim of this double-blinded, randomized, controlled clinical study was to investigate the effect of titanium-prepared platelet-rich fibrin (T-PRF) treatment on the angiogenic biomarkers in gingival crevicular fluid (GCF) in infrabony defects of patients with chronic periodontitis. Materials and Methods: Twenty five systemically healthy participants who complied with inclusion criteria with periodontal infrabony defects were recruited. In each patient, the infrabony defect of one side of arch was designated as control group (allograft), whereas the infrabony defect on the contralateral side of same arch was designated as test group (allograft + T-PRF). The therapy methods (test or control) were randomly decided. GCF samples were collected at baseline (presurgery) and then the 3rd, 7th, 14th, and 30th days after surgery. Platelet-derived growth factor (PDGF)-BB, vascular endothelial growth factor (VEGF)-A, fibroblast growth factor (FGF)-2, anjiogenin (ANG), angiostatin (ANT) in the GCF samples were measured using human enzyme-linked immunosorbent assay kits. Results: In both groups, total amounts of PDGF-BB, VEGF-A, FGF-2, ANG, and ANT peaked in the GCF samples obtained at the early postoperative day (day 3) and decreased over time in the samples obtained at the 7th, 14th, and 30th days postsurgery. There were no significant differences between groups for the total amounts of PDGF-BB, VEGF-A, FGF-2, ANG, and ANT at all evaluation periods. Conclusion: Application of T-PRF combined with allograft in infrabony defects of patients with chronic periodontitis had no significant effects on angiogenic biomarkers in GCF.