Disagreement exists regarding the relationship between occlusal interferences and temporomandibular joint dysfunction (TMD). This study sought to determine how a balanced occlusion, providing uniform contact in centric relation, would affect signs and symptoms of TMD. A randomly chosen group of 60 patients with occlusal interferences and signs and symptoms of TMD used a mandibular orthotic to b...

PURPOSE The purpose of this study was to evaluate cell toxicity due to ion release caused by galvanic corrosion as a result of contact between base metal and titanium. MATERIALS AND METHODS It was hypothesized that Nickel (Ni)-Chromium (Cr) alloys with different compositions possess different corrosion resistances when contacted with titanium abutment, and therefore in this study, specimens (...

heavy metals in water resource are one of the most important environmental problems of countries. chromium is considered as one of the important environmental pollutants due to its toxicity considered as water contaminant that may disturb metabolic activity. this research aims to study the potential of jujube fruit powder for low cost adsorption of cr (vi) in compression with granular activated...

The effective removal of dyes from aqueous wastewaters is among the most important issues formany industrialized countries. Removal of Congo Red (CR) dye from aqueous solutions was studiedusing nickel oxide nanoparticles. The operating variables studied were initial pH of solution,adsorbents dosage, temperature and contact time. The morphological information of nickel oxidenanoparticles were ch...

Cellulose-based Ni/Cr (Ni/Cr-C) and cellulose-based Zn/Cr (Zn/Cr-C) composite materials have been successfully carried out, which is indicated by the XRD, FTIR, BET analysis. Layered double hydroxide (Ni/Cr-LDH) increased surface area from 0.128 m2/g to 2.207 in Ni/Cr-C composites, layered (Zn/Cr-LDH) also 0.133 3.714 Zn/Cr-C composites. The pHpzc of material this study pH 5.94-8.43, while opti...

The objective of this study is to investigate the removal efficiency of Cr(VI) by Bacillus subtilis, Pseudomonas aeruginosa and Enterobacter cloacae from aqueous solution under different process conditions. Batch mode experiments were carried out as a function of solution pH, biosorbent dosage, Cr(VI) concentration and contact time. The FT-IR spectra and SEM analysis of the biosorbent were reco...

Issues related to the thermal stability of front contacts, based on Cr-Au and Cr-Au-Ag-Au, GaSb-based photovoltaic cells have been considered at operational (the cell temperature is 50 o C) standard conditions as well forced degradation (at 125 200 C). It shown that converter with silver-containing contact preferable in terms resistivity, external quantum yield, FF, V oc , therefore, efficiency...

Removal of Cr(VI) from aqueous solutions using biochar from sugar beet tailing (SBT) was investigated as a function of pH, contact time, and biochar mass via batch experiments. The surface characteristics of SBT biochar before and after Cr(VI) sorption was investigated with scanning electron microscopy equipped with energy dispersive X-ray spectroscopy and Fourier transform infrared spectroscop...