Radwa Ibrahim El-tahawi

fixed prosthodontics manufacturing cad/cam fixed partial denture bridge crown steriolithography photopolymer jetting selective laser sintering inkjet laser powder forming selective electron beam fused deposition modeling wet field milling dry field milling five-axes milling four-axes milling three-axes milling subtractive additive milling design scanning 3d printing silica oating zirconia implants cad on press on layering sintering low temprature degradation tetragonal monoclinic stress-induced transformation transformation toughening veneered zirconia monolithic zirconia yttria-stabilized zirconia dental ceramics zirconia rehabilitation biologic width abutment clinical examination dental implan dental history mrdical history follow up occlusion periodontic orthodontic endodontic restorations oral surgery preliminary assessment mouth preparation pin-ledge dental overlay post and core endocow pins and grooves 7/8 crown half crowns vonlay adhesive restorations ceramics laminte veneer occlusal veneer onlay inlay less is more partial coverage restorations meaning of hospital first educational hospital greek hospitals in ancient rome hospitals in islam ancient maristán healthcare hospitals evolution history