STUDY THE EFFECT OF WEATHERING IN SOME OPTICAL PROPERTIES DENTAL COMPOSITES OF | ||
| Journal of University of Anbar for Pure Science | ||
| Article 20, Volume 7, Issue 2, August 2013, Pages 1-7 PDF (598.66 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.37652/juaps.2013.84906 | ||
| Authors | ||
| HUDA K.H* ; ASMAEL K; Mohammed O; KANSA Qasim Amin | ||
| Ministry of Science and Technology - Materials Research Department | ||
| Abstract | ||
| This laboratory study was conducted to evaluate the effect of weathering process accelerated by factors like a light, heat and water to change color and surface properties of the two types of polymeric composites material ..Specimens of two composites were prepared at the dimeter of 10 mm and thickness of 1mm .conducted the test of(UV / VIS / NIR) using spectroscopy of ultraviolet to see how much absorbance of the samples prepared. Calculated transactions (L *, a *, b *) of the samples for the purpose of study change color (∆ E*) examined samples micromachined using optical microscopy to determine the properties of the surface.conducted the weathering process of the samples prepared. Results showed that composites treatment with light materials of the type (Tetric-ceram) resist change color after weathering process more than one type (Tetric) and type (Tetric-ceram) remains the favorite when used in dental restorations | ||
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