TY - BOOK AU - Heba Mohammad Elsayed Dehis AU - Faten H. Kamel , AU - Fouad Ali Elsharaby , AU - Nagwa H. Elmangoury , TI - Three dimensional evaluation of orthodontists' and laypersons' perception of varying degrees of lip retraction in bimaxiliary dentoal veolar protrusion cases / PY - 2012/// CY - Cairo : PB - Heba Mohammad Elsayed Dehis , KW - Bimaxillary protrusion KW - Facial esthetics KW - Premolar extraction N1 - Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Orthodontics; Issued also as CD N2 - Attractive facial esthetics is undoubtedly a major treatment goal of orthodontics. Patients desire esthetic improvement even when their primary goal is to improve function. The purpose of this study was to evaluate orthodontists' and laypersons' perception of varying degrees of lip retraction in a three dimensional model of bimaxillary dentoalveolar protrusion cases UR - http://172.23.153.220/th.pdf ER -