Milon gupta biography of abraham
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The purpose of this study was to evaluate the physical properties of different self-adhesive resin cements and their shear bond strength on dentin and lithium disilicate ceramic and compare these result with that of conventional resin cement. For this study, four self-adhesive resin cements (Rely-X Unicem, Embrace Wetbond, Mexcem, BisCem), one conventional resin cement (Rely-X ARC) and one restorative resin composite (Z-350) were used. In order to evaluate the physical properties, compressive strength, diametral tensile strength and flexural strength were measured. To evaluate the shear bond strength on dentin, each cement was adhered to buccal dentinal surface of extracted human lower molars. Dentin bonding agent was applied after acid etching for groups of Rely-X ARC and Z-350. In order to evaluate the shear bond strength on ceramic, lithium disilicate glass ceramic (IPS Empress 2) disks were prepared. Only Rely-X ARC and Z-350 groups were pretreated with hydrofluoric acid and silane. And then each resin cement was adhered to ceramic surface in 2 mm diameter. Physical properties and shear bond strengths were measured using a universal testing machine.
Results were as follows
1. BisCem showed the lowest compressive strength, diametral tensile strength and flexural strength.
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Remember those long-staying, TV-remote hogging, serial TV-serial watching distant relatives who used to arrive unannounced when you were a kid. And then stopped you from watching cricket in favour of their crappy TV serial. What were your feelings towards them? Whatever it was, it did not resemble love and affection. Now replace those crummy, intractable relatives of yore with your school subject of History or Social Sciences. Weren’t your feelings towards History kinda similar? I stake all the contents of my nearly empty wallet, that at least for the most of you, it was.
However, There is one thing that tops the 'I hate' list by a distance
History for most of us, was always a major impediment, an obstacle, an immovable object opposing our unstoppable drive towards knowledge ( Read Maths and Science). Useless questions like ‘how does Babar’s fun and frolic in 1476 affect my future’ were raised, without an iota of hope for a definite answer. What we used to get was a growl or a scowl or perhaps both. What we could only do was utter the choicest expletives under our breath, memorize those never ending dates and practice our artistic talents on the unfortunate photographs of the great souls printed in our textbooks.
How will this dead d
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