Scanning Electron Microscopic Evaluation of Surface Roughness of Porcelain By using Different Glazing and Polishing Technique
Al- Anbar Medical Journal,
2011, Volume 9, Issue 1, Pages 118-122
AbstractBackground:ceramic material is the most easthitic material used in dentistry because it has many physiacal properties of high compatibility with oral tissue.Methods & Materials:thirty porcelain(ceramic)specimens resembling flat back facing(porcelain buttons)were fabricated. The samples were randomly divided into five groups according to the types of finishing and polishing, each group consist of six specimens.Results:Group I:no glazing and polishing is roughGroup II: applied glaze: smooth and shiny.Group III: polishing porcelain by sand paper disc followed by rubber cups and polishing paste give polished surface.Group IV: polishing by sand paper disc and rubber weel.Group V:polishing by sand paper disc; rubber wheel and polishing paste give satisfactory results with shorter time and cheaper material.conclusion:SEM evaluation found overglazing (applied glaze)produce a better smooth surface.Aim of the study:To get a good and smooth surface of ceramic material as an aesthetic material used in dentistry by using different smoothing and polishing material.
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