AIM The aim of this study was to evaluate the microleakage of seven adhesive systems on two substrates (enamel and dentin). METHODS AND MATERIALS Class V cavities were performed in buccal and lingual surfaces of 56 bovine incisors. The cervical margin was located in dentin and the incisal margin in enamel. The specimens were randomly divided into seven groups (n=16), according to the adhesive...

AIM The goal of this study was to evaluate nanoleakage within the hybrid layer yielded by etch-and-rinse and self-etch adhesive systems, with different solvents and compositions. MATERIALS AND METHODS Four adhesives were applied onto 20 human dentin disks: group A: Adper Scotchbond 1XT(™) (3M ESPE), group B: One Coat Bond(®) (Coltène Whaledent), group C: AdheSE(®) (Ivoclar Vivadent) and group...

OBJECTIVE The aim was to evaluate, in vitro, the tensile bond strength to dentin of Scotchbond Universal (SU), All-Bond Universal (AU) and One Coat 7 Universal (OC7) adhesives applied in self-etch mode, after 24 h of storage and after 500,000 loading cycles, using Clearfil SE Bond (SE) as a control. MATERIALS AND METHODS The adhesives were applied on the dentin of bovine teeth, followed by th...

In the high temperature combustion atmosphere inside of aircraft turbines, currently used ceramic matrix composites require a protective environmental barrier coating (EBC) to mitigate corrosion turbine parts. Besides thermomechanical and thermochemical properties like matching thermal expansion coefficient (CTE) resistance against corrosive media, mechanical adhesion strength are also necessar...

leads to excessive methylation and hence down regulation of the reelin, GAD67, and other genes, resulting in down regulation of the GABAergic INs (Grayson et al., 2005; Grayson and Guidotti, 2013). The activity of Dnmt is regulated by redox factors at several levels (Hitchler and Domann, 2012; Kang et al., 2012). S-adenosylmethionine (the universal methyl group donor derived from methionine) ma...

This study focused on the numerical simulation of distribution residual stress in yttria-stabilized zirconia (YSZ) coatings prepared with atmospheric plasma spraying (APS). We particularly investigated around interface between top coat and bond coat. During thermal spray deposition, droplets particles deposit substrate a complex manner, causing waviness non-uniform distribution. Therefore, is a...

Thermal cycling of a platinum modified, nickel aluminide (Ni,Pt)Al coated single crystal superalloy, between 1000 and 1150 C with 10 min holds at each temperature, and subject to a compressive uniaxial stress is reported. There are two major effects of the superimposed compressive stress not observed in the absence of the stress. One is that the rumpling pattern exhibits an asymmetry with an in...