Üniversal adezivlerin dentine mikro-gerilim bağlanma dayanımlarının değerlendirilmesi

Amaç: Bu çalışmanın amacı beş farklı üniversal adezivin iki farklı uygulama modunda (etch&rinse ve self-etch) dentine mikro-gerilim bağlanma dayanımlarını μTBS altın standart olarak kabul edilen üç basamaklı bir etch&rinse adeziv ve iki basamaklı bir self-etch adeziv ile karşılaştırmaktır. Materyal ve Metod: Otuz altı adet çürüksüz insan üçüncü molar dişi rastgele olarak 12 gruba ayrıldı (n=3). Her gruptaki dişlerin oklüzal minesi su soğutması altında aşındırıldı ve dentin yüzeyindeki smear tabakası su soğutması altında 600 grit SiC zımpara ile standardize edildi. Üniversal adezivler üretici firmaların talimatları doğrultusunda; Clearfil Universal Bond, self-etch [CUSe] ve etch&rinse [CUEr]; Single Bond Universal, self-etch [SUSe], etch&rinse [SUEr]; All-Bond Universal, self-etch [AlSe], etch&rinse [AlEr]; iBond Universal, self-etch [iBSe], etch&rinse [iBEr]; G-Premio Bond Universal, self-etch [GPSe], etch&rinse [GPEr] olarak uygulandı. Etch&rinse için Optibond FL [OFL], self-etch için ise Clearfil SE Bond [CSE] kontrol grubu olarak kullanıldı. Adeziv uygulamasından sonra dişlerin oklüzal yüzeylerinde rezin kompozit (Filtek Z250; A2) ile 5mm kalınlıkta built-up yapıldı, örnekler 24 saat 37 0C’de bekletildi ve 1 mm2 dentin-kompozit çubuklarına ayrılarak (Isomet) universal test cihazında mikro-gerilim testine (MPa; n:20; 0.5mm/ dk) tabii tutuldu. Veriler two-way ANOVA ve post-hoc Tukey testleri kullanılarak analiz edildi (p

Microtensile bond strength evaluation of universal adhesives to dentine

Aim: To compare the microtensile bond strengths (µTBS) of five universal adhesives applied in two different etching modes (etch&rinse and self-etch) with a reference gold standard three-step etch&rinse and a two-step self-etch adhesive. Materials and Method: 36 non-carious human third molars were divided into 12 groups (n=3) randomly. The occlusal enamel were removed and smear layer on the mid coronal dentin surfaces were created using 600 SIC paper under running water. Clearfil Universal Bond, self-etch [CUSe] and etch&rinse [CUEr]; Single Bond Universal, self-etch [SUSe] and etch&rinse [SUEr]; All-Bond Universal, self-etch [AlSe] and etch&rinse [AlEr]; iBond Universal, self-etch [iBSe] and etch&rinse [iBEr]; G-Premio Bond Universal self-etch [GPSe] and etch&rinse [GPEr] were applied according to their manufacturer’s instructions. Optibond FL [OFL] was applied as etch&rinse control group whereas Clearfil SE Bond [CSE] was used as self-etch control. After adhesive application 5 mm composite (Filtek Z250; A2) build ups were performed then specimens were stored in water (370C/24 h) and sectioned into 1mm2 sticks and microtensile test (MPa; n=20; 0.5 mm/min) was performed using an universal testing machine (Instron). Data were analyzed with two-way ANOVA and post-hoc Tukey’s tests (p

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