21 research outputs found

    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

    Laryngoscopic Examination During the COVID-19 Pandemic: Turkish Voice Speech and Swallowing Disorders Society and Turkish Professional Voice Society Recommendations

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    COVID-19 is highly transmissible and spreads rapidly in the population. This increases the occupational risk for health care workers. In otolaryngology clinic practice, patients with upper respiratory tract infection symptoms are common. Also, routine head and neck examinations such as oral cavity examination, nasal/nasopharyngeal examination, or video laryngostroboscopic evaluation are highly risky because of the aerosol formation. To emphasize this issue, two leading otolaryngology organizations in Turkey; 'Voice Speech and Swallowing Disorders Society', and 'Professional Voice Society' gathered a task force. This task force aimed to prepare a consensus report that would provide practical recommendations of the safety measurements during routine clinical care of laryngology patients. To fulfill this, universal aim, on the 2nd and 9th of May 2020, two web-based meetings were conducted by 20 expert physicians. This eighteen items list was prepared as an output

    Reconstruction of a distal extremity defect using a temporoparietal fascia flap covered with a split-thickness skin graft harvested from the scalp: a cosmetic consideration in donor site selection

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    AMAÇ Rekonstrüktif cerrahide asıl amaç, fonksiyonel ve yapısal açılardan en benzer doku ile yeniden yapılanmanın sağlanmasıdır. Ancak rekonstrüktif cerrah aynı zamanda donör alan komplikasyonlarını en aza indirmeye de odaklanmalıdır. GEREÇ VE YÖNTEM Biz bu çalışmamızda beş hastada distal ekstremite defektlerinde temporoparietal fasya flebi ve deri grefti ile rekonstrüksiyon deneyimlerimizi sunduk. Temporoparietal fasya flebi skalpte aynı bölgeden alınan kısmi kalınlıkta deri grefti ile kaplandı. BULGULAR Greftin skalpten alınması ile hem flep hem greft donör alanları saçların arkasında gizlenmiş oldu. Transfer edilen flep ve greftler tüm hastalarda herhangi bir donör alan komplikasyonu görülmeden olaysız şekilde iyileşti. SONUÇ Distal ekstremite defektlerinde temporaparietal fasya kullanmanın sayısız avantajına ek olarak bunu aynı alandan alınan kısmi kalınlıkta deri grefti ile kombine etmenin hem skarı saçlar tarafından gizleyerek donör alan morbiditesini azaltması hem de optimal rekonstrüktif sonuçları sağlamasıBACKGROUND In reconstructive surgery, the ultimate goal in rebuilding a structure is to provide the most similar substitute from both the functional and structural points of view. At the same time, the reconstructive surgeon should focus on minimizing donor area complications. METHODS In this report, we present our experiences with the reconstruction of distal extremity defects using a free temporoparietal fascia flap in five patients. The flap was subsequently covered with a split-thickness skin graft harvested from the same region of the scalp as the flap donor site. RESULTS By procuring the skin graft from the scalp, the donor sites of both the flap and the skin graft were concealed by hair. The transferred flaps and skin grafts healed uneventfully in all patients without any complications at the donor or recipient site. CONCLUSION We conclude that this combination of harvesting a temporoparietal fascia flap, which has many advantages in reconstructing distal extremity defects, along with a skin graft from the same region as the flap, both hidden by hair, can limit donor site morbidity and achieve optimal reconstructive outcomes

    West nile virus infection in the Mesopotamia region, Syria border of Turkey.

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    We described the serological prevalence of West Nile Virus (WNV) antibodies among the human population in a historical and strategic region of Turkey. A serologic survey was conducted based on suspected cases in April, 2009, in the Mesopotamia region of Turkey, in the villages that were located alongside the Zergan River. All the sera were tested by enzyme-linked immunosorbent assay ELISA (Euroimmune™), and the positive samples were tested by immunofluorescent assay (IFA; Euroimmune™). As confirmation, neutralizing antibodies against WNV were tested by microneutralization assay (MNTA). In total, 307 individuals were included. The MNTA test was found to be positive among 52 individuals out of 307 (17\%). In multivariate analysis, age >50 [odds ratio (OR)=5.2, confidence interval (CI) 2.76-9.97, p<0.001) and being in an occupational risk group (OR=2.02, CI 1.02-4.04, p=0.044) were found to be the risk factors for WNV seropositivity with the MNTA test. The physicians in the region should be aware of the risk of WNV infection and should be alerted to detect the clinical cases
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