%0 Journal Article %T A comparative study of CAD/CAM fabricated polyether ether ketone and fiber-glass reinforcement composites versus metal lingual retainers under vertical load (an in vitro study) %A Alabbadi , Abdullah A. %A Abdalla, Essam M. %A Hanafy, Seham A. %A Yousry, Tarek N. %J BMC Oral Health %V 23 %N 1 %D 2023-08-21 %I BioMed Central %~ DeepDyve