TY - BOOK AU - Ahmed Adel Abdelaziz AU - Dalia Mostafa Abuelmagd , AU - Hebat Allah Mohamed Taher, AU - Ola Mohamed Ibrahim Fahmy , TI - Insitu investigation on color change surface roughness and microharness of resin composite restoratives cured by two different curing units / PY - 2010/// CY - Cairo : PB - Ahmed Adel Abdelaziz , KW - Color change KW - Insitu KW - Resin composite N1 - Thesis (Ph.D.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Operative Dentistry; Issued also as CD N2 - The aim of the study is to investigate and compare insitu the effect of halogen light curing unit and high - performance ligt emitting diode light curing unit on some properties of resin composite including color change translucency parameter surface roughness and surface microhardness . Biodegradation of resin composite by the oral environmental factor has a direct effect on its optical and physical properties UR - http://172.23.153.220/th.pdf ER -