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  • Küçük Resim
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    Effect of Meloxicam on Gingival Crevicular Fluid IL-1beta and IL1 Receptor Antagonist Levels in Subjects With Chronic Periodontitis, and Its Effects on Clinical Parameters
    (Springer Heidelberg, 2006) Toker, Hülya; Marakoğlu, İsmail; Poyraz, Ömer
    The aim of the present study was to determine the effects of meloxicam after initial periodontal treatment on interleukin-1beta (IL-1 beta) and IL-1 receptor antagonist (IL-1ra) in gingival crevicular fluid (GCF) and clinical parameters in the chronic periodontitis patients. Data were obtained from 30 patients with chronic periodontitis. Fifteen chronic periodontitis patients received 7.5 mg meloxicam, and 15 patients received placebo tablets in a 1x1 regimen for 1 month. All subjects were nonsmokers and had not received any periodontal therapy. The plaque index (PI), gingival index (GI), probing depth (PD), and clinical attachment level (CAL) were recorded. The GCF was collected using a paper strip: eluted and enzyme-linked immunoabsorbent assays (ELISAs) were performed to determine the cytokine levels. The clinical data and GCF samples were obtained after periodontal therapy and 1 month after periodontal therapy. The PI, GI, PD, and GCF IL-1ra decreased significantly (p < 0.05) in meloxicam group at first month when comparing the initial levels. While decrease of the PI was statistically significant in control group (p < 0.05), statistically significant changes were not determined in the other clinical parameters and GCF cytokine levels (p > 0.05). There were no significant differences between two groups in any of the investigated parameters. Our observations did not reveal any influence of meloxicam on levels of IL-1 beta and IL-1ra in chronic periodontitis. Additional clinical studies are advisable to determine whether COX-2 selective drugs alter periodontal disease outcome with greater safety.
  • Küçük Resim
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    Ozone improves autogenous graft healing in experimental diabetes mellitus: A morphometric and immunohistochemical study
    (Selçuk Üniversitesi, 2020) Alpan, Aysan Lektemur; Toker, Hülya; Özer, Hatice
    Background: Diabetes mellitus (DM) is a metabolic disorder which plays crucial role in the pathogenesis of periodontitis. Ozone have several actions such as antimicrobial, immunostimulating, antihypoxic effects, and activates antioxidant enzymes and angiogenesis. The aim of this study is to investigate the effect of gaseous ozone on bone healing in diabetic rat calvarial defects treated with autogenous bone graft, morphometrically and immunohistochemically. Material and Methods: Diabetes was induced and critical size defects were created on rats. Study groups: 1-Empty defect (Control, n=14) group, 2-Autograft (AG, n=14) group, 3-Empty defect+ozone therapy (Control+Ozone, n=14) group, 4- Autograft+ozone application (AG+Ozone, n=14) group. Gaseous ozone was applied on the operation day and the following 2 weeks daily (140ppm @ 2L/d, 2.24 mg). Total bone area was measured. Osteocalcin and Bone morphogenic protein-2 protein expressions were evaluated. Results: Control and Control+Ozone groups had no osteoclast and residuel lacunae during the study . Osteoblasts in AG+Ozone group were higher than AG group at 4th week (p>0.05). AG+Ozone group had more total bone area than AG group at 4th week. AG+Ozone group revealed more BMP-2 immune positivity compared to the other groups. Osteocalcin immune positivity in AG groups was higher than those of the Control groups. Conclusion: Within the limitations of this study, gaseous ozone application decreased osteoclast number and increased osteoblast number and bone regeneration, especially, in early stages of bone regeneration in diabetic rats.