Rehab Mohamed Ahmed Hamed <br/><br/>
Silorane based resin composite versus nanohybrid resin composite :   Effect of PH of storage media on volumetric changes and tooth / restoration interface /  
 سيلوران الكمبوزيت انراتنجى مقابل الكمبوزيت الراتنجى :   تأثير تركيز الأيون الهيدروجينى فى وسط الحفظ على التغيرات الحجمية و حد السن/  المادة الترميميه 
Rehab Mohamed Ahmed Hamed ; Supervised Mohamed Adel Ezzat Khairy , Inas Elghandour 
 - Cairo :   Rehab Mohamed Ahmed Hamed ,   2011 
 - 119 Leaves :   charts ;   30cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Operative Dentistry 
<br/><br/> The aim of the present study is to investigate the effect of PH of storage medium on volumetric changes and tooth restoration interface of a silorane based resin composite and a nano - hybrid resin composite at different time periods. For volumetric dimensional changes, a total of sixty specimens was prepared by applying each restorative material [a silorane based resin composite (Filtek P90) and a nano - hybrid resin composite (Filtek Supreme XT)] inside a central hole of 2mm diameter and 3mm height of standardized teflon mold and cured following manufacturer instructions. Length and diameter of each specimen was measured before and after storage using a digital caliper, change in volume was then calculated using mathematical equation 
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<br/><br/><label>Subjects--Index Terms: </label>PH of storage media Silorane based resin composite Versus nanohybrid resin composite