introduction: the purpose of this study was to investigate the effect of flask investment materials on the color changes of different brands of resin denture teeth. methods: resin denture teeth (560) were divided into 2 groups according to the materials used for flask investment (silicone or gypsum). all the specimens were thermocycled between 4°c and 60°c with 60-s dwell times for 1,000 cycles...

ABSTRACT: Peach palm is a domesticated commercially important for the production of fruits and hearts palm. Somatic embryogenesis, an effective technique mass propagation, was successfully established this species. Furthermore, temporary immersion system improved plant regeneration. However, can be further by understanding peach palm’s growth dynamic modifications culture media. The aims study ...

The current physiological in vitro tests of Mg degradation follow the procedure stated according to the ASTM standard. This standard, although useful in predicting the initial degradation behavior of an alloy, has its limitations in interpreting the same for longer periods of immersion in cell culture media. This is an important consequence as the alloy's degradation is time dependent. Even if ...

In the ongoing efforts to theorize the interactive experience proposed by video games, it is common to make a distinction between fictional elements and the gameplay in itself. E. Adams distinguished between tactical, strategic and fictional immersions. In Half-Real, J. Juul has notoriously declared that video games encompass two things: fictional worlds and real rules. Many approaches stress t...

Cryogenic fluorescent light microscopy of flash-frozen cells stands out by artifact-free fixation and very little photobleaching of the fluorophores used. To attain the highest level of resolution, aberration-free immersion objectives with accurately matched immersion media are required, but both do not exist for imaging below the glass-transition temperature of water. Here, we resolve this cha...

This study evaluated, in vitro, the erosive potential of pediatric liquid medicines in primary tooth enamel, depending on the exposure time. Sixty deciduous incisors were randomly assigned to 4 groups (n=15), according to the immersion solutions: guaifenesin; ferrous sulfate; salbutamol sulfate and artificial saliva. The immersion cycles in the medicines were undertaken under a 1-min agitation,...

To evaluate and compare the solubility and sorption of orthodontic bonding cements after immersion in different solutions, five different cements were used: a fluoride-containing resin composite, a light-cured glass ionomer cement, a light-cured resin composite, a paste-paste chemically cured resin composite, and a liquid-paste chemically cured resin composite. Five different solutions were emp...