Goal: 06 - Temiz Su ve Sanitasyon
AMAÇ 6: TEMİZ SU VE SIHHİ KOŞULLAR Herkes için erişilebilir su ve atık su hizmetlerini ve sürdürülebilir su yönetimini güvence altına almak Su kıtlığı, dünya genelinde insanların %40’tan fazlasını etkiliyor; iklim değişikliği sonucunda küresel ısınma nedeniyle, zaten kaygı verici düzeyde olan bu oranın daha da yükseleceği tahmin ediliyor. 1990 yılından bu yana 2,1 milyar insanın daha iyi su ve sıhhi koşullara erişmesi sağlanmış olmakla birlikte, güvenli içme suyu kaynaklarının azalması, tüm kıtaları etkileyen büyük bir sorundur.
Publication Search Results
Now showing 1 - 5 of 5
Publication Metadata onlySubglottik Stenoz; Ne Zaman Endoskopik Dilatasyon? Ne Zaman Açık Cerrahi?(2019-11-17T00:00:00Z) Çalım, Ömer Faruk; ÇALIM, ÖMER FARUKÇocuklarda havayolu cerrahisi; 1970’lerden önce Buji dilatasyon olarak yapılırken, 1970-2000 yıllarında ekspansiyon greftleme ve rezeksiyon açık cerrahisi baskındı. 21.yyda endoskopik cerrahi yükselişe geçmiştir. Preoperatif değerlendirme ve multidisipliner işbirliği çok önemli olan havayolu cerrahisinde ses, yutma, solunum ve hayat kalitesi değerlendirilmelidir. Karar aşamasında aile ile iletişim ve işbirliği önplana çıkmaktadır. Entübasyona bağlı endotrakeal kaf hasarını takiben ortaya çıkan subglottik stenoz, yoğun bakım ünitelerinin artışıyla sık görülmeye başlanmıştır. Tedavi olarak endoskopik yöntemler ve açık cerrahi teknikler mevcuttur. Üniversite hastanemizde multidisipliner yaklaşımla takip ve tedavisi yapılan vakaların preoperatif, intraoperatif ve postoperatif görüntüleriyle endoskopik balon dilatasyonu, genişletici greftleme ve rezeksiyon teknikleri sunulacaktır. Publication Metadata onlyEffect of saliva contamination on shear bond strength and microleakage of one-bottle etch-and-rinse and self-etch adhesives: scanning electron and confocal laser microscopic analyses(2014-03-19) Tuncer, Safa; Demirci, Mustafa; Tekce, Neslihan; Isler, Sabri Cemil; Uysal, Omer; UYSAL, ÖMERPurpose: To evaluate the effect of saliva contamination on shear bond strength, microleakage, and microstructure of the adhesive interface in two different adhesive systems by using scanning electron microscopy (SEM) and confocal laser microscopy (CLSM). Materials and methods: Randomly, 228 third molars were allocated to six groups for an etch-and-rinse adhesive One-Step Plus (Bisco Inc.) and a self-etch adhesive G Bond (GC Corp.): Group 1 - manufacturer-s instructions were followed; Group 2 - involved contamination and drying before adhesive application; Group 3 - involved contamination, washing, and blot drying before adhesive application; Group 4 - involved contamination, etching, washing, and blot drying before adhesive application; Group 5 - involved contamination and drying after adhesive application, followed by adhesive reapplication; Group 6 - involved contamination and washing after adhesive application, followed by adhesive reapplication. Shear bond strength was tested after specimens were stored in distilled water at 37 degrees C for 24h. Specimens were evaluated under a stereomicroscope for microleakage. Dentin-resin interfaces were evaluated by SEM and CLSM. Results: Group 2 for One-Step Plus and Group 3 for G Bond showed significantly lower bond strengths than control groups. Microleakage values were significantly greater at dentin than at enamel margins for all groups. In Group 2, for both adhesive systems, the highest microleakage was observed at dentin margins. Further, dentin-adhesive interfaces were not uniform and gaps were found by SEM and CLSM. Conclusions: The SEM and CLSM images demonstrated high variability of dentin-resin interfaces among saliva-contaminated groups. Rinsing the saliva and re-applying adhesive might be the best way to reduce the effect of saliva contamination on bond strength and microleakage. Publication Metadata onlyEstetik ve Fonksiyonel Rehabilitasyonda Ortodonti-Protez İşbirliği: Vaka Sunumu(2014-10-25T00:00:00Z) YILMAZ, BERZA; Yılmaz, Ercan; YILMAZ, BERZA Publication Open AccessEffect of Er:YAG laser enamel conditioning and moisture on the microleakage of a hydrophilic sealant(2018-07-01) Guclu, Zeynep Asli; Hurt, Andrew Paul; Donmez, NAZMİYE; Coleman, Nichola Jayne; DÖNMEZ, NAZMİYEFor a given sealant, successful pit and fssure sealing is principally governed by the enamel conditioning technique and the presence of moisture contamination. A new generation of hydrophilic resin sealants is reported to tolerate moisture. This study investigates the impact of Er:YAG laser pre-conditioning and moisture contamination on the microleakage of a recent hydrophilic sealant. Occlusal surfaces of extracted human molars were either acid etched (n = 30), or successively lased and acid etched (n = 30). Ten teeth from each group were either air-dried, water-contaminated, or saliva-contaminated prior to sealing with UltraSeal XT® hydro™. Samples were inspected for penetration of fuchsin dye following 3000 thermocycles between 5 and 50 °C, and the enamel–sealant interfaces were observed by scanning electron microscopy (SEM). Signifcant diferences in microleakage were evaluated using the Mann–Whitney U test with Bonferroni adjustment (p = 0.05). Laser pre-conditioning signifcantly reduced dye penetration irrespective of whether the enamel surface was moist or dry. Microleakage of water-contaminated acid etched teeth was signifcantly greater than that of their air-dried or saliva-contaminated counterparts. SEM analysis demonstrated good adaptation in all groups with the exception of water-contaminated acid etched teeth which exhibited relatively wide gaps. In conclusion, this hydrophilic sealant tolerates the presence of saliva, although water was found to impair its sealing ability. Laser pre-conditioning signifcantly decreases microleakage in all cases. Publication Metadata onlyEffects of Water Flow Rate on Shear Bond Strength of Orthodontic Bracket Bonded to Enamel Surface After Er:YAG Laser Ablation(2013-10-01T00:00:00Z) Topcuoglu, Tolga; Oksayan, Ridvan; Ademci, K. Ebru; GÖYMEN, MERVE; Usumez, Serdar; Usumez, AslihanObjective: The aim of present study was to evaluate the effect of water flow rate on enamel surface roughness and shear bond strength (SBS) of orthodontic brackets after Er:YAG laser ablation. Background data: It is well known that external water supply is a fundamental requirement for Er:YAG laser efficiency on dental hard tissues. However, there is no consensus considering the water flow rate used during Er:YAG laser ablation. Methods: Eighty sound human upper premolar teeth were used in the present study. Seventy-six teeth were assigned into four groups according to surface treatments. The 37% phosphoric acid-etched group served as the control. Er:YAG laser irradiation was performed in three subgroups with water flow rates of 25, 36, and 48mL/min, respectively. All specimens were subjected to a SBS test. One specimen from each different surface treatment modality was examined by scanning electron microscopy. Kruskal-Wallis test was used to compare the SBS value of each group. Results: Although the control group had the highest SBS value, statistically no significant differences were found among groups. Conclusions: Er:YAG laser application with a water flow rate of 48mL/min produced better enamel surface alterations without any thermal damage to yield higher SBS values.