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Öğe Effect of disinfection on the dimensional stability of polyether impression materials: Basic science research(2007) Yilmaz H.; Aydin C.; Gul B.; Yilmaz C.; Semiz M.Purpose: Difficulties in sterilizing impressions have led to chemical disinfection solutions as an alternative; however, some impression materials are more sensitive to humidity. For example, polyether impression materials are more hydrophilic. This study investigated the effect of three disinfecting methods on the dimensional stability of three polyether impression materials. Materials and Methods: Three polyether impression materials (P2, Impregum Penta Soft, and Impregum Penta) were submitted to the following treatments: spray disinfectant (Mikrozid Liquid), immersion in 2% glutaraldehyde solution (Super-On), immersion in 0.525% sodium hypochlorite solution for 10 minutes, and a control group (not disinfected). Each group included five samples. After treatment, dimensional change was evaluated according to ISO 4823. The data were analyzed by 2-way analysis of variance at ? = 0.05. Results: The mean percentages of linear dimensional change of materials P2, Penta Soft, and Penta were -0.040%, 0.098%, and 0.100%, respectively. The dimensional change associated with different disinfectant agents mikrozid liquid, 2% glutaraldehyde, room air (control), and 0.525% sodium hypochlorite was 0.013%, 0.024%, 0.077%, and 0.096%, respectively. The interaction between the impression materials and the disinfectant treatment was not significant. The disinfectant agents can be classified in two groups as low- and high-effected. The control group did not significantly differ from either group. Conclusion: From the standpoint of dimensional change, the disinfectants tested for 10 minutes caused no significant linear dimensional change in the polyether impression materials, compared with the control group. J Prosthodont 2007;16:473-479. Copyright © 2007 by The American College of Prosthodontists.Öğe Effect of Sports Activities on Life Levels for Women(2003) Yilmaz H.; Akandere M.In this study carried out to determine the effect of sports activities levels for women, 15 women interested in sports were selected as test group. Fifteen women who were not dealt with sports were accepted a control group. For the test group, aerobic, step- streching and conclusion gymnastics were applied for 3 months, 3 days a week, 1.5 hours per day. Control group were not exposed to sports. Two life satisfaction measure, are beginning and the other at the end of the research was applied to the both groups. The results were analyzed statistically. The results showed that there was found a relationships between test and control groups for P 0.05 significance level. At the beginning of the research, comparison to test and control groups, there was no significance relationships in terms of life satisfaction level: this showed that in the beginning at the research, there was a similar characteristics between test and final-test results points for test group, the difference was found significant according to the 0.05 level. This showed that sports activities applied to the test group improved to life satisfaction levels. Comparison to test and control groups for final test results, shows a significant difference in terms of 0.05 level. Therefore, sports activities applied to the test group improved to life satisfaction levels. As a result, This research showed clearly that sports activities applied to the human regularly improved life satisfaction levels.Öğe High dose intravenous methylprednisolone in TAR syndrome(1994) Oran B.; Caliskan U.; Oran I.; Tastekin A.; Yilmaz H.; Yasar N.C.; Erkul I.[Abstract not Available]Öğe Is unilateral spinal anesthesia superior to bilateral spinal anesthesia in unilateral inguinal regional surgery?(American University of Beirut, 2014) Cicekci F.; Yilmaz H.; Balasar M.; Sahin M.; Kara F.Background: Unilateral spinal anesthesia is performed to provide restriction of sensory and motor block.Objective: The aim of this study was to compare unilateral and bilateral spinal anesthesia, with regard to limiting the nerve block exclusively to the area of surgery. Methods: This was a prospective, randomised, double-blind study, conducted in 40 consecutive outpatients scheduled for unilateral inguinal regional surgery. Patients in both groups received 0.5 % hyperbaric bupivacaine 15 mg + morphine 0.1 mg. Patients in the unilateral group (Group U) were placed in the lateral decubitus position for 10 minutes (min) on their side to be operated, while patients in the bilateral group (Group B) were placed in the supine position. The pin-prick test was used to assess the times to reach L1, T12 and T10 sensory blocks and the times to reach motor block. In addition, the sensory and motor block recovery times were recorded using a modified Bromage scale. Furthermore, the duration of the operation and the times to first analgesic requirement were noted. Results: There were significant differences between Group U and Group B in the times to reach L1, T12 and T10 dermatome levels of sensory block, and the times to reach motor block using the modified Bromage scale on three levels. However, there was no difference in the time to ambulation, the time to complete sensory regression and the time to first analgesic requirement. Conclusion: The time to reach sensory and motor blocks for unilateral spinal anesthesia could provide an advantage over bilateral spinal anesthesia in inguinal region operations. © 2014, American University of Beirut. All rights reserved.Öğe The preventive effect of diphenhydramine on bacterial growth in propofol: A laboratory study(2008) Güzelant A.; Apiliogullari S.; Kara I.; Turhan V.; Apiliogullari B.; Yilmaz H.; Balasar M.Background and objective: Diphenhydramine has local anaesthetic and antimicrobial activity and may be used to prevent intravenous propofol injection pain. We studied the effect of adding diphenhydramine to propofol emulsions for preventing bacterial growth. Methods: Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli and Candida albicans cultures were inoculated into the following solutions: 1% propofol, 0.05% diphenhydramine + 1% propofol, 0.1% diphenhydramine + 1% propofol, 0.2% diphenhydramine + 1% propofol, 0.3% diphenhydramine + 1% propofol, 1% diphenhydramine and 0.1% lidocaine + 1% propofol. A 100-?L of inoculum suspension adjusted for each of the micro-organisms was added separately to each tube and left at 20°C. A 10-?L aliquot of each mixture was inoculated onto blood agar medium at 5 and 24 h. These plates were incubated at 35°C for 24 h. Each plated medium was read, and the number of colony-forming units were counted and recorded (n = 2). Analysis of variance (ANOVA) with a post hoc Tukey HSD test and paired t-tests were used for data analysis. P < 0.05 was considered as significant. Results: Diphenhydramine inhibited bacterial growth in propofol solutions in a dose-dependent manner. It was more effective than 0.1% lidocaine at similar concentrations in preventing bacterial growth for all organisms. Conclusion: Diphenhydramine had a significant inhibitory effect on bacterial growth in propofol. © 2008 Copyright European Society of Anaesthesiology.
