background: as glass ionomers have the ability to reload fluoride from outside sources, the aim was to compare the recharge pattern of six glass ionomer cements after exposure to fluoride. materials and methods: fuji vii, fuji ix, riva pink, riva bleach, ketac fil and fuji ix extra were investigated. the fluoride-containing materials used were tooth paste and mouth wash (colgate). specimens of ...

We investigated single application of pastes containing a surface reaction-type pre-reacted glass-ionomer (S-PRG) filler on enamel demineralization. Human enamel blocks were polished using pastes containing S-PRG filler (0, 5, and 30%) and immersed in demineralizing solution for 5 days with daily change of solutions. The pH measurement and nanoindentation testing was carried out during the imme...

The aim was to synthesize a toothpaste and analyze its effect on surface micro-hardness roughness of enamel. Basic paste prepared by using basic ingredients. Theobromine (0.2 wt%) laboratory synthesized fluoridated-bioactive glass (F-BG, 4 were added it. Post-demineralization, 36 enamel blocks divided into six groups that brushed with their respective toothpaste+artificial saliva (AS): group 1 ...

A low-temperature sintered silver paste was used for the metallization of tempered glass, which to prepare vacuum-tempered glass by soldering with Sn96.5Ag3Cu0.5 (SAC305). The effects content and sintering temperature on microstructures, shear strengths, fracture mechanisms bondlines were investigated in detail. microstructure thick film its interface characterized. dissolution precipitation be...

Although implants made with bioactive glass have shown promising results for bone repair, their application in repairing load-bearing long bones is limited due to their low fracture toughness and fairly fast degradation response in vivo. In this paper, we describe our investigation of freeform extrusion fabrication of silicate based 13-93 bioactive glass scaffolds reinforced with titanium fiber...

This paper details investigations into the effects of different powder size ratios on the d33 coefficient of thick-film PZT layers. The two powders used were 5H type PZT supplied by Morgan Electro Ceramics Ltd. These were prepared using ball milling for the large particles, ~2um, and attritor milling for the small particles, ~1um. These powders were mixed with 10% by weight of Ferro CF7575 lead...

Micrometer order magnetophotonic crystals with periodic arranged metallic glass and oxide glass composite materials were fabricated by stereolithographic method to reflect electromagnetic waves in terahertz frequency ranges through Bragg diffraction. In the fabrication process, the photo sensitive acrylic resin paste mixed with micrometer sized metallic glass of Fe72B14.4Si9.6Nb4 and oxide glas...

The effect of dentin pretreatment with Desensitizing Paste containing 8% arginine and calcium carbonate on the retention of zirconium oxide (Y-TZP) crowns was tested. Forty molar teeth were mounted and prepared using a standardized protocol. Y-TZP crowns were produced using computer-aided design and computer-aided manufacturing (CAD-CAM) technology. The 40 prepared teeth were either pretreated ...