اﻟﺨﻼﺻﺔ اﻷﻫﺪاف ، )ا ﳌﺪة اﳌﻘﻄﺮ اﳌﺎء ﰲ ﻏﻤﺮﻫﺎ ﺑﻌﺪ اﳉﺎﻓﺔ اﻟﻀﻐﻂ ﺑﺘﻘﻨﻴﺔ اﳌﻌﺎﳉﺔ ﺗﺄﺛﲑ ﺗﻘﻴﻴﻢ إﱃ اﺳﺔ اﻟﺪر ﻫﺬﻩ :ﺗﺪف 4 ، 12 اﻟﺬوﺑﺎن ، اﳌﺎء اﻣﺘﺼﺎص ﺧﺎﺻﻴﺔ ﻋﻠﻰ أﺳﺎﺑﻴﻊ ( اﳋﺼﺎﺋﺺ. ﻫﺬﻩ ﻋﻠﻰ اﻟﻐﻤﺮ ﻓﱰة ﺗﺄﺛﲑ ﻟﺘﻘﻴﻴﻢ أﻳﻀﺎ و اﻟﺘﻘﻠﻴﺪﻳﺔ، اﳌﻌﺎﳉﺔ ﺗﻘﻨﻴﺔ ﻣﻊ ﻧﺔ ﺑﺎﳌﻘﺎر ﻳﺎ ار ﺣﺮ اﳌﻌﺎﰿ ﻳﻠﻴﻚ اﺗﻨﺠﺎﻻﻛﺮ اﻟﺮ ﻣﺎدة ﻋﻠﻰ اﻟﻠﻮن ﺗﻐﲑ و ، اﻟﻌﻤﻞ ﺋﻖ وﻃﺮ اﻟﻤﻮاد : اﳌﺎء ﰲ اﻟﻐﻤﺮ ﰒ اﳉﺎﻓﺔ(، ﺑﺎﻟﻀﻐﻂ اﳌﻌﺎﳉﺔ ﺗﻘﻨﻴﺔ و اﻟﺘﻘﻠﻴﺪﻳﺔ اﳌﻌﺎﳉﺔ )ﺗﻘﻨﻴﺔ ﳐﺘﻠﻔﺘﲔ ﺑﺘﻘﻨﻴﺘﲔ ﻣﻌﺎﳉﺘﻪ ﲤﺖ ﻳﺎ ار ﺣﺮ اﳌﻌﺎﰿ ﻳﻠﻴﻚ اﺗﻨﺠﺎﻻﻛﺮ اﻟﺮ ﻣﺎدة ﻣﻦ ﻋﻴﻨﺔ ﺳﺘﲔ اﺳﺘﺨﺪام ﰎ ) ﳌﺪة اﳌﻘﻄﺮ 1،4 و 12 ﺣﲔ ﰲ اﳉﻔﺎف. و ﺑﺎﳌﻴﺎﻩ اﻟﺘﺸﺒﻊ ﺑﻌﺪ اﻟﻜﺘﻠﺔ ﰲ اﻟﺸﺎﻣﻞ اﻟﺘﻐﻴﲑ ﻳﻖ ﻃﺮ ﻋﻦ اﻟﺬوﺑﺎن ﻗﺎﺑﻠﻴﺔ اﺧﺘﺒﺎر و اﳌﻴﺎﻩ اﻣﺘﺼﺎص ﺧﺎﺻﻴﺔ اﺧﺘﺒﺎر ﰎ أﺳﺎﺑﻴﻊ. ( ) ﺑﺒﻌﺪ ﻗﻤﻴﺔ اﻟﺮ اﻟﺼﻮر أﻋﺪت ﰒ ، ﻗﻤﻴﺔ اﻟﺮ اﻟﻀﻮﺋﻲ اﳌﺎﺳﺢ ﺑﺎﺳﺘﺨﺪام اﻟﻜﻤﺒﻴﻮﺗﺮ ﺟﻬﺎز ﻋﻠﻰ ﻗﻤﻴﺔ ر ﺻﻮر إﱃ ﲢﻮﻳﻠﻬﺎ ﺑﻌﺪ اﻟﻌﻴﻨﺎت ﻗﺒﻞ ﻣﻦ اﻟﻠﻮن ﺗﻐﲑ اﺧﺘﺒﺎر ﰎ 760 * ﺑﻜﺴﻞ 960 ﻧﺎﻣﺞ ﺑﺮ ﻓﻮﺗﻮﺷﻮب ﻧﺎﻣﺞ ﺑﺮ اﺳﻄﺔ ﺑﻮ ﻋﻴﻨﺔ ﻟﻜﻞ ﺑﻜﺴﻞ( Adob 9.0 ﻧﺎﻣﺞ ﺑﺮ ﺧﻼل وﻣﻦ ، MATLAB 2010 ان ﻷﻟﻮ ﲢﻠﻴﻞ ﰎ RGB ﻟﻴﺔ اﻷو ﻧﻈﺎم)* إﱃ ﲢﻮﻳﻠﻪ ﰎ ﰒ ، اﻷﺳﺎﺳﻴﺔ CIE L * A * B ﻓﻮﺗﻮﺷﻮب ﻧﺎﻣﺞ ﺑﺮ ﻳﻖ ﻃﺮ ﻋﻦ ( 9.0 * ) اﻟﻠﻮن ﻓﺮق ﻣﻘﻴﺎس اﺳﺘﺨﺪﻣﺖ و ، CIE L * A * B ﻷداء ( دﻧﻜﻦ. اﺧﺘﺒﺎر و اﻟﺒﻴﺎﻧﺎت ﲢﻮﻳﻞ ﺑﺎﺳﺘﺨﺪام اﻟﺘﺤﻠﻴﻞ ﰎ ﰒ ﻣﻦ اﻟﻠﻮن. ﺗﻐﲑ اﺧﺘﺒﺎر اﻟﻨﺘﺎﺋﺞ ﰲ ﻣﻠﺤﻮظ ﺗﻐﲑ ﻫﻨﺎك أن ﺗﺒﲔ اﳌﻌﺎﳉﺔ، ﺗﻘﻨﻴﺎت ﺑﲔ ﻧﺎت اﳌﻘﺎر ﺧﻼل ﻣﻦ : ﻋﻨﺪ اﻟﺬوﺑﺎن و اﳌﻴﺎﻩ اﻣﺘﺼﺎص ﺧﺎﺻﻴﺔ P≤ 0.05 ﻋﻨﺪ ﻣﻠﺤﻮظ ﺗﻐﲑ ﻳﻮﺟﺪ ﻻ أﻧﻪ ﺑﲔ اﻟﻠﻮن ﺗﻐﲑ ﺧﺎﺻﻴﺔ اﺧﺘﺒﺎر أن ﺣﲔ ﰲ ، P> 0.05 اﳌﺨﺘﻠﻔﺔ اﻟﻐﻤﺮ أوﻗﺎت ﰲ ) 1 ، 4 و 12 ﺗﻘﻨﻴﺎت ﻟﻜﻼ اﻟﻠﻮن ﺗﻐﲑ اﺧﺘﺒﺎر و ، اﻟﺬوﺑﺎن ﻗﺎﺑﻠﻴﺔ ، اﳌﺎء اﻣﺘﺼﺎص ﺧﺎﺻﻴﺔ ﰲ ﻣﻠﺤﻮظ ﺗﻐﲑ ﻫﻨﺎك أن اﻇﻬﺮ اﻟﻐﻤﺮ أوﻗﺎت ﺑﲔ ﻧﺔ ﺑﺎﳌﻘﺎر إﻣﺎ . أﺳﺎﺑﻴﻊ( ﻋﻨﺪ اﳌﻌﺎﳉﺔ P≤ 0.05 . اﻻﺳﺘﻨﺘﺎﺟﺎت
ABSTRACTAims: The purpose of this study was to evaluate the effect of dry pressure curing technique after immersion in distilled water for 1 ,4 and 12 weeks on the water sorption, solubility, and color change of heat cured acrylic resin as compared with conventional curing technique, also to evaluate the effect of immersion period on these properties. Materials and methods: Sixty specimens of vertex regular heat cured acrylic resin denture base material were used in this study, curing by two different technique, conventional curing technique and dry pressure curing technique, then immersed in distilled water for 1,4, and 12 week . The water sorption and solubility test were measured by means of mass change in the materials after water saturation and dehydration. While the color change test was measured by the samples converted to digital images on computer by using digital scanner, then the digital images were prepared with dimension 760 pixels*960 pixels for each samples by software program Adob Photoshop 9.0, by MATLAB 2010 program the image was analyzed to the basic primary co...