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    Antibacterial Effects of Several Current Orthodontic Materials against Streptococcus mutans
    (UNIV WEST INDIES FACULTY MEDICAL SCIENCES, 2012) Catalbas, B.; Kamak, H.; Demir, A.; Nur, M.; Hadimli, H. H.
    The aim of this study was to examine the antibacterial effect of several current orthodontic materials against a certain oral bacterium. The antibacterial activities of six orthodontic composite resins (Transbond LR, Light Cure Retainer (LCR), Light Bond, System 1+, Kurasper E Transbond XT adhesive), two orthodontic bonding materials (Transbond XT primer and System 1+ activator) and two glass ionomer cements (GIC) [Multicure Glass Ionomer and Ketac Cem WC] were evaluated against Streptococcus mutans. The hard materials were put into the Teflon mould. The liquid materials were put on a paper disc. All materials were handled under aseptic conditions and placed on agar culture plates. All plates were incubated at 5% CO2 and 37 degrees C for 48 hours. The bacterial growth inhibition zones including the diameter of the sample were measured in millimetres. As a result of this study, the multicure GIC showed the highest antibacterial effectiveness, but no inhibition zones were noted for ketac cem GIC. The light bond adhesive of the Reliance orthodontic bonding system produced high antibacterial effect against S mutans, while the Reliance composite (LCR) did not show any antibacterial effect (p < 0.05). Both composite and primer of the transbond XT system demonstrated significant antibacterial effect against the test bacterium when compared to transbond LR (p < 0.05). Among the materials tested, kurasper F, Ormco system 1+ and system 1+ activator showed slight or no inhibitory effect against the test bacterium in this study. In patients who have relatively high salivary levels of Streptococci mutans before treatment, the multicure GIG, the Reliance light bond adhesive, and transbond XT system which had high level antibacterial properties could be applied.
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    THE CAUSATIVE CLASSIFICATION OF STROKE (CCS) FOR ETIOLOGICAL CLASSIFICATION OF ISCHEMIC STROKE AND COMPARISON WITH THE TOAST SYSTEM
    (KARGER, 2013) Ozturk, S.; Ekmekci, H.; Demir, A.
    [Abstract not Available]
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    Epidemiologic features of nonalcoholic fatty liver
    (OXFORD UNIV PRESS INC, 2008) Celebi, S.; Demir, A.
    [Abstract not Available]
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    Maxillary Canine Transposition
    (2002) Demir, A.; Başçiftçi, Faruk Ayhan; Gelgör, İbrahim Erhan; Karaman, A. I.
    [Abstract not Available]
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    MILLS' SYNDROME: A CASE REPORT
    (WILEY-BLACKWELL, 2011) Ekmekci, H.; Ozturk, S.; Demir, A.
    [Abstract not Available]
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    Physicochemical Pretreatment and Dewaterability of Septage
    (INST LEBENSMITTELTECHNOLOGIE ANALYTISCHE CHEMIE, 2001) Akça, Lütfi; Sevimli, Mehmet Faik; Alp, Kadir; Demir, A.; Çitil, Elif Tuğçe
    In this study, chemical treatability of septa-e was investigated. The septage, taken from the equalization tank of an existing septa-e treatment plant, was coagulated by different chemicals such as alum, alum plus polyelectrolite (PE) and lime plus PE in varying dosages. After coagulation-flocculation and sedimentation TSS, COD and total phosphorus (TP) parameters of the liquid phase were measured. Capillay suction time (CST) was measured as an indication of the dewaterability of the sludge generated from coagulation. The best results were obtained by alum plus PE and the optimum dosages for alum and PE were found to be 200 mg/l and 2 mg/l, respectively. The COD and TSS removal efficiencies were satisfactory and the phosphorus concentration of the liquid phase was appropriate for the nutrient balance required by activated sludge microorganisms. Dewaterability of sludge was also at satisfactory levels. These results imply that dewaterability of sludge could be considered as an additional parameter for the determination of optimum coagulants.