نتایج جستجو برای: single bond
تعداد نتایج: 933791 فیلتر نتایج به سال:
مقدمه: گاه تعمیر رستوریشن ها نسبت به جایگزینی کامل آن ها، روش مناسب تری می باشد. با این حال به دلیل استحکام باند ضعیف از روش های آماده سازی سطحی مختلفی برای بهبود باند بین دو کامپوزیت استفاده می شود. هدف از این پژوهش، بررسی تأثیر چند روش آماده سازی سطحی بر میزان استحکام باند کامپوزیت تعمیر شده بود . مواد و روش ها: در این مطالعه آزمایشگاهی، 56 نمونه کامپوزیتی ( filtek supreme ) تهیه و به طور...
Background and Aim: Achieving adhesion between restorative materials and dentin as a wet and dynamic surface is an important topic in restorative and especially in conservative dentistry. Adhesion of new dentin bonding systems depends on the formation of hybrid layer and micromechanical retention. Nevertheless, an ideal adhesive system has not yet been introduced .Recent studies reveal an incre...
Statement of Problem: The use of dentine bondings on enamel and dentin in total etch protocols has recently become popular. Unfilled resin is hydrophobic and dentin bonding is hydrophilic in nature. This chemical difference could be effective in enamel bonding process. Purpose: The aim of this study was to compare the shear bond strength of unfilled resin to dry enamel and dentin bonding to dry...
Single and double equilibrium bond lengths of the fcc-C60 crystal were calculated in the absence and presence of the endohedral C atom as an impurity doped into each C60 cluster, i.e., fcc-C@C60, by means of fully-relaxed self-consistent calculations within the density functtional theory (DFT) employing the full potential-augmented plane waves plus local orbital (FP-APW+lo) method. The result s...
PURPOSE The aim of this study was to evaluate microbial contamination and inhibitory effect against Streptococcus mutans (SM) of Prime & Bond (PB), Single Bond (SB) and Excite (EX) bonding systems before use, and after 10 and 20 applications. METHODS The bonding material was collected by applying a drop of the material directly on broth brain-heart infusion. The samples were homogenized, dilu...
AIM This study tested the null hypothesis that there is no difference on microleakage of dentin-bordered composite restorations using single or double coats of adhesive from one-bottle adhesive systems. METHODS AND MATERIALS The enamel surface was removed from freshly extracted bovine teeth, and standardized Class V cavities (3 x 3 x 1.5 mm) were made at the cervical areas of buccal surfaces....
adequate bond strength between glass ionomer cements and composite resin is necessary for the success of the sandwich technique.this study assessed the micro-shear bond strength of composite resin to glass-ionomer cements (gic) using self-etch adhesives with different ph values.one hundred specimens (6×4×2 mm) were made using fuji ii and fuji ii lc gics and treated with different adhesives as f...
سابقه و هدف: امروزه با توجه به مزایای آمالگام های با درصد نقره ی بالا، این نوع از آمالگام ها بسیار مورد توجه قرار گرفته بنابراین هدف از این مطالعه بررسی استحکام باند کامپوزیت به آمالگام با درصد نقره ی بالا با کاربرد عوامل باندینگ مختلف بود. مواد و روش ها: در این مطالعه ی تجربی آزمایشگاهی 52 سیلندر آکریلی تهیه و درون آن ها آمالگام با میزان نقره ی 60 درصد پک شد و با فرز فیشور الماسی ساییده و به م...
This study compared the shear bond strength (SBS) to enamel of five self-etching primer/adhesive systems and one total-etch, one-bottle adhesive system. Sixty freshly extracted bovine incisors were mounted, polished to 600-grit and randomly assigned to six groups (n=10): Adper Prompt Self-Etch (AD), OptiBond Solo Plus Self-Etch (OP), AdheSE (AS), Tyrian (TY) and Clearfil SE Bond (SE) as self-et...
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