35 research outputs found

    Summer Term Commencement [Program], August 18, 1932

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    The program of the commencement ceremonies, including a list of institutional leadership, a list of the departments by college, awards given at the ceremonies, and a list of undergraduate and graduate degree candidates.https://scholarworks.uni.edu/commencement_programs/1197/thumbnail.jp

    The impact of Er:YAG laser enamel conditioning on the microleakage of a new hydrophilic sealant — UltraSeal XT® hydro™

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    UltraSeal XT® hydro™ is a new hydrophilic, light-cured, methacrylate-based pit and fissure sealant which has been developed by Ultradent Products, USA. The sealant is highly filled with a 53 wt.% mixture of inorganic particles which confer both thixotropy and radiopacity. The principal purpose of this study was to investigate the microleakage of UltraSeal XT® hydro™ as a function of different enamel etching techniques. The occlusal surfaces of sound, extracted human molars were either acid etched, Er:YAG laser irradiated or successively laser irradiated and acid etched. UltraSeal XT® hydro™ was applied to each group of teeth (n=10) which were subjected to a thermocycling process consisting of 2500 cycles between 5 and 50°C with a dwell time of 30s. Microleakage assessments were then carried out using 0.5 % fuchsin dye and optical microscopy. The microleakage score data were analysed using the Kruskal-Wallis, Mann–Whitney U test with Bonferroni adjustment. No significant differences in microleakage were noted between the individually acid etched and laser-irradiated groups (p>0.05); however, teeth treated with a combination of laser irradiation and acid etching demonstrated significantly lower microleakage scores (p<0.001). Electron microscopy with energy-dispersive X-ray analysis revealed that the mineral filler component of UltraSeal XT® hydro™ essentially comprises micrometre-sized particles of inorganic silicon-, aluminium- and barium-bearing phases. Laser etching increases the roughness of the enamel surface which causes a concentrated zoning of the filler particles at the enamel-sealant interface

    The effect of heat application on fluoride release from antibacterial agent added glass ionomer cement

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    Objectives: This study aimed to evaluate the effect of heat on the fluoride (F-) releasing ability of glass ionomer cement (GIC) when used in the conventional form and when combined with 5% cetylpryridium chloride (CPC). Materials and Methods: Twenty (n=5; each group) GIC samples were prepared, with the experimental group comprising GIC combined with 5% CPC and the control group comprising GIC without 5% CPC. The samples were prepared by non-heating (NH) procedures (n = 10) or by heating (H) for 60 seconds (n = 10) with a Light Emitting Diode (LED). Flouride releasing pattern was evaluated on days 1, 7, 15 and 30. Repeated measurements using two-way ANOVA and Fisher's LSD test were used for comparisons (p < 0.05). Results: Interactions among the groups, application of heat, and the time at which F- release was evaluated were analyzed (p < 0.001). There was no significant difference in F- release in the NH control and experimental groups on days 1, 7 and 15; however a significant release was evident in the experimental group on day 30 (p=0.01). Significantly higher values were obtained in the H associated control group than in the experimental group on days 1 (p=0.026), 7 (p = 0.001), 15 (p=0.005) and 30 (p=0.028). Significantly increased values were obtained from days 1 to 30 by NH and H procedures for both the groups (p<0.001). Conclusions: Heating in the control and experimental groups showed an increased F- releasing pattern. The fluoride release on 60 seconds of heating GIC containing 5% CPC, can have acceptable values for up to 30 days. The increased F- releasing pattern after the heating is believed to be promising for antibacterial GIC combinations. © 2019 Cumhuriyet Dental Journal

    Radiological and functional outcomes of ultrasound-guided PRP injections in intrasubstance meniscal degenerations

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    PubMed: 31204581Aim: This retrospective study is aimed to analyze the effect of ultrasound-guided platelet-rich plasma (PRP) injections on grade 2 intrasubstance meniscal degenerations (IMDs). Materials and Methods: Fifteen patients who underwent PRP injections for symptomatic grade 2 meniscal lesions were included in the study. All injections were performed with ultrasound in the degenerated menisci. Patients were evaluated with Lysholm score and magnetic resonance imaging (MRI) before the injection and after a mean of 32-month follow-up. T2-weighted MRI images were evaluated on sagittal by two authors as double-blind. Results: Lysholm score was found to be statistically significantly increased, and in 67% of the patients, grade 2 degenerations were improved to grade 1. Conclusion: Intra-meniscal PRP injection under ultrasonography guidance provides good functional scores and radiological improvement in the patients with IMD. © the Author(s) 2019

    Comparison of the Effects of 2 Surgical Techniques Used in the Treatment of Concha Bullosa on Olfactory Functions

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    PubMed: 31597534Introduction: Concha bullosa (CB), which is pneumatization of the concha, is one of the most commonly seen anatomic variations of the lateral nasal wall. Objective: To investigate the effects on olfactory function of lateral turbinectomy and crushing methods used in the surgical treatment of CB. Methods: The study included a total of 47 patients operated on for a diagnosis of CB and nasal septum deviation. The patients comprised 22 females and 25 males, with bilateral CB in 18 cases and unilateral in 29 cases. Intervention was made to a total of 65 CB. The cases were separated as those applied with septoplasty and lateral turbinectomy in group 1 (n = 34) and those applied with the septoplasty and crushing method in group 2 (n = 31). The olfactory function of the patients was evaluated preoperatively and at 3 months postoperatively with the Brief Smell Identification Test. Results: A statistically significant increase was determined in the postoperative smell test results compared with the preoperative values in both group 1 (P =.021) and group 2 (P =.001). When the change in the smell test results from preoperative to postoperative was compared between the groups, the increase in group 2 was determined to be statistically significantly greater (P =.002). Conclusion: The results of this study showed that the crushing method in surgical treatment of CB increased olfactory functions more than the lateral resection method, and as the improvement in olfactory functions was greater, this demonstrated that only increasing the nasal cavity is not sufficient and the nasal mucosa should be protected as far as possible. © The Author(s) 2019
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