TY - BOOK AU - Afify,Rasha Hassan Aly AU - Abi El Hassan,Mohsen Hussein AU - Mosallam,Rania Sayed TI - The effect of Ozone on marginal integrity and surface topography of class V restorative system U1 - 617.6 21 PY - 2009/// KW - Radiology KW - Dentistry, Operative KW - Dentistry Surgery N1 - Supervisors : Mohsen Hussein Abi El Hassan, Rania Sayed Mosallam; Thesis (M. Sc.)-Cairo university,faculty of oral and dental medicine, 2009; Includes bibliographical references ER -