OBJECTIVE To ascertain the efficacy of polymerization of self-etching dental adhesives in different solvent evaporation conditions. MATERIAL AND METHODS Four self-etching adhesive systems were studied. Two of them are classified as mild two-step self-etching adhesives (Clearfil SE Bond, Protect Bond) and the other two are strong one-step systems (Xeno III, ADP-Prompt-L-Pop). The influence of ...

The dominant trend in packaging DDR DRAM for the future is the face down substrate-on-chip configuration. For this type of package it is critical that the die attach method employed provide precise control of bond line thickness and die tilt, minimal fillet, and prevent contamination of the wire bond pads located on the edge of the center wire bond channel. To date, a film adhesive has been the...

OBJECTIVES The aim of this study was to compare the shear bond strength (sbs) of three different adhesives on bleached enamel immediately after bleaching, bleached/delayed for 1 week, and bleached/applied antioxidizing agent. STUDY DESIGN The enamel surfaces of 144 freshly extracted incisors without any caries and restorations were flattened and divided into 12 groups. The following adhesives...

Auto-degradation of collagen matrices occurs in resin-infiltrated dentine by the slow action of host-derived matrix metalloproteinases. As phosphoric acid-etching inactivates these endogenous enzymes, it is puzzling how hybrid layers created by simplified etch-and-rinse adhesives can degrade in vivo. This study tested the null hypothesis that there are no differences in the relative proteolytic...

microleakage is a major factor affecting longevity of composite restorations. this study evaluated the effect of polymerization mode of bonding agent on microleakage of composite restorations.forty-eight class v cavities were prepared on buccal and lingual surfaces of 24 extracted human premolars. occlusal and gingival margins were placed in the enamel and dentin, respectively. teeth were divid...

OBJECTIVES This study investigated whether increasing the concentration of acidic monomers in one-step adhesives would allow reducing their application time without interfering with the bonding ability to primary enamel and dentin. MATERIAL AND METHODS Experimental one-step self-etch adhesives were formulated with 5 wt% (AD5), 20 wt% (AD20), or 35 wt% (AD35) acidic monomer. The adhesives were...

Numerous medical conditions such as cancer, eczema, moles, and burns may leave patients with increased sensitivity to UV light. A UV-protective patch that provides a healing environment for sensitive or broken skin is therefore developed from two-phase glycerol-silicone adhesives. The adhesives are prepared using simple processing method in which high shear forces mix glycerol silicone prepolym...