TY - BOOK AU - Mennat Allah Ihan Mosleh AU - Fatma Abdou Abdelsayed , AU - Mohamed Amgad Kaddah , TI - A three dimensional comparative study of two rapid maxillary expanders / PY - 2012/// CY - Cairo : PB - Mennat Allah Ihan Mosleh , KW - Cone beam computed tomography KW - Minicscrews KW - Rapid maxillary expansion N1 - Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Orthodontics; Issued also as CD N2 - Maxillary constriction is considered one of the common orthodontic problems that could be accompanied by unilateral or bilateral posterior cross- bite narrow nasal cavity and dental crowding Aim : The purpose of this study was to evaluate and to compare three dimensionally the dento- skeletal changes concurrent with tooth- borne and bone- borne rapid maxillary expanders UR - http://172.23.153.220/th.pdf ER -